White House 2016: Democratic Nomination See also: Rating the contenders Tweet Info on accessing STATE POLLS Investor's Business Daily/TIPP Poll. May 31-June 5, 2016. N=351 registered voters nationwide who are Democrats or lean to the Democratic Party. Margin of error ± 5.3.

Notes:

The Feb. 2016, survey, included a series of issue questions prior to the presidential primary ballot match-up. Among the topics covered: Whether a special prosecutor should investigate if "Clinton's use of a private email server compromised any intelligence."

The Jan. 2016, survey, included a series of issue questions prior to the presidential primary ballot match-up. Among the topics covered: The "investigation by the FBI" into Clinton's use of email, if "the government should control or own key industries," if it's "the government's role to redistribute wealth and income," if "the U.S. is evolving into a socialist state." "I am going to read you the names of the candidates who are running for the Democratic presidential nomination. If the Democratic presidential primary were held today, whom would you support for the nomination? Would you say [see below], or someone else?" Options rotated 5/31 -

6/5/16 4/22-28/16 3/28 -

4/2/16 2/19-24/16 % % % % Hillary Clinton 51 49 45 45 Bernie Sanders 37 43 44 43 Someone else 8 5 6 5 Unsure 3 2 3 6 Refused - - 1 1 1/22-27/16 1/4-8/16 11/30 -

12/4/15 10/24-29/15 9/26 -

10/1/15 % % % % % Hillary Clinton 50 43 51 48 42 Bernie Sanders 38 39 33 33 18 Martin O'Malley 2 2 1 2 1 Someone else 4 6 6 7 6 Unsure 5 9 8 8 8 Refused 1 1 0 2 3 Joe Biden n/a n/a n/a n/a 22 Jim Webb n/a n/a n/a n/a 1 Lincoln Chafee n/a n/a n/a n/a - Quinnipiac University. May 24-30, 2016. N=678 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 3.8. "Who would you like to see win the Democratic nomination for president this year: Hillary Clinton or Bernie Sanders?" 5/24-30/16 3/16-21/16 % % Hillary Clinton 53 50 Bernie Sanders 39 38 Someone else (vol.) 1 1 Unsure/No answer 7 10 ABC News/Washington Post Poll. May 16-19, 2016. N=373 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5.5. "Who would you like to see win the Democratic nomination for president this year: Hillary Clinton or Bernie Sanders?" If unsure: "Which candidate are you leaning toward?" 5/16-19/16 3/3-6/16 % % Hillary Clinton 56 49 Bernie Sanders 42 42 Other (vol.) 1 2 Neither (vol.) 1 4 Unsure 1 3 NBC News/Wall Street Journal Poll conducted by Hart Research Associates (D) and Public Opinion Strategies (R). May 15-19, 2016. N=342 Democratic primary voters nationwide. Margin of error ± 5.3. "And, if the next Democratic primary for president were being held today, which one of the following candidates would you favor: [see below]?" If unsure: "Well, which way do you lean?" Options rotated 5/15-19/16 4/10-14/16 % % Hillary Clinton 53 50 Bernie Sanders 45 48 Neither (vol.) 2 - Unsure - 2 3/3-6/16 2/14-16/16 1/9-13/16 12/6-9/15 10/25-29/15 % % % % % Hillary Clinton 53 53 59 56 62 Bernie Sanders 44 42 34 37 31 Other (vol.) - - - - 1 Neither (vol.) 1 1 3 2 1 Unsure 2 4 2 1 2 Martin O'Malley n/a n/a 2 4 3 CBS News/New York Times Poll. May 13-17, 2016. N=371 Democratic primary voters nationwide. Margin of error ± 6. "Which one of these candidates would you like to see the Democratic Party nominate for president in 2016: [see below]?" Options rotated

Prior to 11/15: "Suppose the race for the Democratic Party's presidential nomination in 2016 comes down to the following candidates, which one would you like to see the Democratic Party nominate for president in 2016: [see below]?" 5/13-17/16 4/8-12/16 3/17-20/16 2/12-16/16 % % % % Hillary Clinton 51 50 50 47 Bernie Sanders 44 44 45 39 Someone else (vol.) - - 1 - None of them (vol.) 3 3 2 4 Unsure/No answer 2 3 3 10 1/7-10/16 12/4-8/15 11/6-10/15 10/4-8/15 9/9-13/15 % % % % % Hillary Clinton 48 52 52 56 58 Bernie Sanders 41 32 33 32 28 Martin O'Malley 2 2 5 1 - Someone else (vol.) - - 1 1 2 None of them (vol.) 3 5 3 3 2 Unsure/No answer 6 9 6 4 6 Jim Webb n/a n/a n/a 2 3 Lincoln Chafee n/a n/a n/a 1 - Lawrence Lessig n/a n/a n/a - n/a CNN/ORC Poll. April 28-May 1, 2016. N=405 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5. "Who would you MOST like to see win the Democratic nomination for president: [see below]?" Options rotated 4/28 -

5/1/16 3/17-20/16 % % Hillary Clinton 51 51 Bernie Sanders 43 44 Someone else (vol.) 3 2 None/No one (vol.) 1 1 Unsure 2 2 Suffolk University/USA Today. April 20-24, 2016. N=363 likely voters nationwide who say they will participate in or have participated in the Democratic presidential primary or caucus in their state. Margin of error ± 5.1. "If the Democratic primary for president was held today, and the candidates were Hillary Clinton and Bernie Sanders, for whom would/did you vote: Clinton or Sanders?" Options rotated % Hillary Clinton 50 Bernie Sanders 45 Unsure 4 Fox News Poll conducted by Anderson Robbins Research (D) and Shaw & Company Research (R). April 11-13, 2016. N=450 likely Democratic primary and caucus voters nationwide. Margin of error ± 4.5. "Please tell me which one of the following candidates you would like to see as the Democratic presidential nominee: [see below]." If unsure: "Well, if you had to decide today, which one would you choose?" Options rotated

Note: Follow-up question added June 21-23, 2015. 4/11-13/16 3/20-22/16 2/15-17/16 % % % Hillary Clinton 48 55 44 Bernie Sanders 46 42 47 Other (vol.) - - 1 None of above (vol.) 1 2 1 Unsure 4 1 7 1/18-21/16 1/4-7/16 12/16-17/15 11/16-19/15 11/1-3/15 % % % % % Hillary Clinton 49 54 56 55 56 Bernie Sanders 37 39 34 32 31 Martin O'Malley 1 3 2 3 2 Other (vol.) 1 1 1 - 2 None of above (vol.) 2 1 2 5 4 Unsure 10 2 4 5 4 10/10-12/15 9/20-22/15 8/11-13/15 7/30 -

8/2/15 7/13-15/15 % % % % % Hillary Clinton 45 44 49 51 59 Bernie Sanders 25 30 30 22 19 Joe Biden 19 18 10 13 8 Martin O'Malley 1 2 1 1 1 Jim Webb - 1 1 1 1 Larry Lessig - - n/a n/a n/a Lincoln Chafee - - - 1 1 Other (vol.) 1 - 1 1 1 None of above (vol.) 4 2 3 3 4 Unsure 5 3 4 6 5 6/21-23/15 5/31 -

6/2/15 5/9-12/15 4/19-21/15 3/29-31/15 % % % % % Hillary Clinton 61 57 63 62 61 Bernie Sanders 15 11 6 4 3 Joe Biden 11 8 6 9 12 Andrew Cuomo 3 1 2 3 3 Jim Webb 2 2 2 - 1 Martin O'Malley 1 4 - 1 2 Lincoln Chafee - 1 - - n/a Other (vol.) 1 1 1 - 1 None of above (vol.) 2 2 2 4 3 Unsure 5 6 6 5 3 Elizabeth Warren n/a 7 13 12 11 Without Biden (Biden supporters allocated based on 2nd choice): 10/10-12/15 % Hillary Clinton 54 Bernie Sanders 28 Martin O'Malley 2 Jim Webb 1 Lincoln Chafee 1 Larry Lessig - Other (vol.) 1 None of above (vol.) 6 Unsure 7 Public Religion Research Institute/The Atlantic. March 30-April 3, 2016. N=788 Democratic and Democratic-leaning voters nationwide. "Which of the following Democratic candidates would you most like to see as the Democratic Party's 2016 nominee for president: [see below]?" Options rotated % Bernie Sanders 47 Hillary Clinton 46 Other/Unsure/Refused 7 McClatchy-Marist Poll. March 29-31, 2016. N=497 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 4.4. Democratic Presidential Preference, including those who are leaning toward a candidate: 3/29-31/16 10/29 -

11/4/15 % % Bernie Sanders 49 35 Hillary Clinton 47 57 Other 1 - Unsure 4 4 Martin O'Malley n/a 4 Pew Research Center. March 17-27, 2016. N=842 Democratic and Democratic-leaning registered voters nationwide. Margin of error ± 3.8. "As I name some Democratic candidates for president in 2016, please tell me which one, if any, you would most like to see nominated as the Democratic Party's candidate: [see below]." If unsure: "As of today, who would you say you LEAN toward?" Options rotated % Hillary Clinton 49 Bernie Sanders 43 None (vol.) 4 Too early to tell (vol.) 2 Unsure/Refused 2 Bloomberg Politics Poll conducted by Selzer & Company. March 19-22, 2016. N=311 likely Democratic primary and caucus voters nationwide, including those who have already participated. Margin of error ± 5.6. "Which one of the following Democrats would be your first choice for president: [see below]?" Options rotated % Bernie Sanders 49 Hillary Clinton 48 Unsure 3 Monmouth University Poll. March 17-20, 2016. N=391 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5. "Who do you support for the Democratic nomination for president: [see below]?" Options rotated

1/16 & earlier: "Who would you support for the Democratic nomination for president if the candidates were [see below]?" 3/17-20/16 1/15-18/16 12/10-13/15 10/15-18/15 % % % % Hillary Clinton 55 52 59 48 Bernie Sanders 37 37 26 21 Other (vol.) 0 0 1 0 No one (vol.) 2 4 3 3 Unsure 6 4 8 9 Martin O'Malley n/a 2 4 - Joe Biden n/a n/a n/a 17 Larry Lessig n/a n/a n/a 1 Jim Webb n/a n/a n/a 1 Lincoln Chafee n/a n/a n/a - 8/31 -

9/2/15 7/30 -

8/2/15 7/9-12/15 6/11-14/15 3/30 -

4/2/15 % % % % % Hillary Clinton 42 52 51 57 60 Joe Biden 22 12 13 12 16 Bernie Sanders 20 16 17 12 7 Martin O'Malley 1 2 1 1 2 Jim Webb 1 2 1 2 1 Lincoln Chafee 0 0 0 0 n/a Other (vol.) 0 2 0 0 0 No one (vol.) 4 3 2 2 2 Unsure 10 11 15 14 12 CNN/ORC Poll. Feb. 24-27, 2016. N=418 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5. "I'm going to read a list of people who are running in the Democratic primaries for president this year. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president, or if you would support someone else. [See below.]" Options rotated 2/24-27/16 1/21-24/16 12/17-21/15 11/27 -

12/1/15 % % % % Hillary Clinton 55 52 50 58 Bernie Sanders 38 38 34 30 Someone else 3 7 7 7 None/No one (vol.) 2 1 4 2 Unsure 2 1 1 1 Martin O'Malley n/a 2 3 2 Suffolk University/USA Today. Feb. 11-15, 2016. N=319 likely voters nationwide who say they will participate in the Democratic presidential primary or caucus in their state. Margin of error ± 5.5. "If the Democratic primary for president was held today, and the candidates were [see below], for whom would you vote or lean toward?" Options rotated 2/11-15/16 12/2-6/15 9/24-28/15 7/9-12/15 % % % % Hillary Clinton 50 56 41 59 Bernie Sanders 40 29 23 14 Other (vol.) - - - 1 Unsure 10 11 14 16 Martin O'Malley n/a 4 0 1 Joe Biden n/a n/a 20 8 Lincoln Chafee n/a n/a 1 - Larry Lessig n/a n/a - n/a Jim Webb n/a n/a - 2 Quinnipiac University. Feb. 10-15, 2016. N=563 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 4.1. "If the Democratic primary for president were being held today, and the candidates were [see below], for whom would you vote?" 2/10-15/16 2/2-4/16 12/16-20/15 11/23-30/15 10/29 -

11/2/15 % % % % % Hillary Clinton 44 44 61 60 53 Bernie Sanders 42 42 30 30 35 Someone else (vol.) - 1 - 1 - Wouldn't vote (vol.) 2 2 1 1 2 Unsure/No answer 11 11 6 6 9 Martin O'Malley n/a n/a 2 2 - Larry Lessig n/a n/a n/a n/a 1 9/17-21/15 8/20-25/15 7/23-28/15 5/19-26/15 4/16-21/15 % % % % % Hillary Clinton 43 45 55 57 60 Bernie Sanders 25 22 17 15 8 Joe Biden 18 18 13 9 10 Lincoln Chafee - - - 1 - Larry Lessig - n/a n/a n/a n/a Martin O'Malley - 1 1 1 3 Jim Webb - 1 1 1 1 Someone else (vol.) 2 - 1 1 - Wouldn't vote (vol.) 2 2 1 2 3 Unsure/No answer 10 11 11 14 14 ABC News/Washington Post Poll. Jan. 21-24, 2016. N=406 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5.5. "If the 2016 Democratic presidential primary or caucus in your state were being held today and the candidates were Hillary Clinton, Bernie Sanders and Martin O'Malley, for whom would you vote?" If unsure: "Which candidate would you lean toward?" Options rotated

11/15: "I'm going to read a list of possible candidates for the Democratic nomination for president in 2016. If the 2016 Democratic presidential primary or caucus in your state were being held today, for whom would you vote? [See below.]" If unsure: "Which candidate would you lean toward?" 1/21-24/16 12/10-13/15 11/16-19/15 % % % Hillary Clinton 55 59 60 Bernie Sanders 36 28 34 Martin O'Malley 4 5 3 Other (vol.) 1 1 1 None of these (vol.) 2 2 1 Wouldn't vote (vol.) 1 2 0 Unsure 2 4 1 Public Religion Research Institute. Jan. 20-24, 2016. N=253 registered Democrats nationwide. "Which of the following Democratic candidates would you most like to see as the Democratic Party's 2016 nominee for president: [see below]?" Options rotated 1/20-24/16 12/2-6/15 % % Hillary Clinton 53 58 Bernie Sanders 33 24 Martin O'Malley 1 3 Other (vol.) 3 1 Unsure/Refused 11 15 Bloomberg Politics Poll conducted by Selzer & Company. Nov. 15-17, 2015. N=385 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5. "Which one of the following Democrats would be your first choice for president: [see below]?" Options rotated % Hillary Clinton 55 Bernie Sanders 30 Martin O'Malley 3 Uncommitted (vol.) 4 Unsure 8 ABC News/Washington Post Poll. Oct. 15-18, 2015. N=352 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 6. "I'm going to read a list of possible candidates for the Democratic nomination for president in 2016. If the 2016 Democratic presidential primary or caucus in your state were being held today, for whom would you vote? [See below.]" If unsure: "Which candidate would you lean toward?" 10/15-18/15 9/7-10/15 7/16-19/15 5/28-31/15 % % % % Hillary Clinton 54 42 63 62 Bernie Sanders 23 24 14 10 Joe Biden 16 21 12 14 Martin O'Malley 1 2 1 3 Jim Webb 1 1 2 1 Lincoln Chafee - 1 - 1 Other (vol.) 1 1 2 2 None of these (vol.) 2 5 3 4 Would not vote (vol.) 1 1 1 1 Unsure 2 3 2 1 Without Biden (Biden supporters allocated based on 2nd choice): 10/15-18/15 9/7-10/15 7/16-19/15 % % % Hillary Clinton 64 56 68 Bernie Sanders 25 28 16 Martin O'Malley 2 3 2 Jim Webb 2 2 5 Lincoln Chafee - 1 1 Other (vol.) 1 1 2 None of these (vol.) 3 5 3 Would not vote (vol.) 1 1 1 Unsure 2 4 3 Monmouth University Poll. Oct. 15-18, 2015. N=340 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5.3. "I know the 2016 election is far away, but who would you support for the Democratic

nomination for president if the candidates were [see below]?" Options rotated % Hillary Clinton 48 Bernie Sanders 21 Joe Biden 17 Larry Lessig 1 Jim Webb 1 Lincoln Chafee - Martin O'Malley - No one (vol.) 3 Unsure 9 "I know the 2016 election is far away, but who would you support for the Democratic

nomination for president if the candidates were [see below]?" If Biden: "If Biden decided not to run, would you support [see below]?" Combined responses. % Hillary Clinton 57 Bernie Sanders 24 Lincoln Chafee 1 Larry Lessig 1 Martin O'Malley 1 Jim Webb 1 No one (vol.) 4 Unsure 12 NBC News/Wall Street Journal Poll conducted by Hart Research Associates (D) and Public Opinion Strategies (R). Oct. 15-18, 2015. N=400 Democratic primary voters nationwide. Margin of error ± 4.9. "And, thinking about people who might seek the Democratic nomination for president in 2016, if the next Democratic primary for president were being held today, which one of the following candidates would you favor: [see below]?" If unsure: "Well, which way do you lean?" 10/15-18/15 9/20-24/15 % % Hillary Clinton 49 42 Bernie Sanders 29 35 Joe Biden 15 17 Jim Webb 2 1 Martin O'Malley 1 - Lincoln Chafee - - None (vol.) 2 1 Unsure 2 4 "And, thinking about people who might seek the Democratic nomination for president in 2016, if the next Democratic primary for president were being held today, which one of the following candidates would you favor: [see below]?" If unsure: "Well, which way do you lean?" Asked of Biden supporters: "And, if Joe Biden decides not to seek the Democratic nomination for president in 2016, which candidate would you favor: [see below]?" Combined responses, excluding Biden. 10/15-18/15 9/20-24/15 % % Hillary Clinton 58 53 Bernie Sanders 33 38 Jim Webb 2 1 Martin O'Malley 1 1 Lincoln Chafee - - Other (vol.) - 1 None (vol.) 3 2 Unsure 3 4 CNN/ORC Poll. Oct. 14-17, 2015. N=425 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5. "I'm going to read a list of people who may be running in the Democratic primaries for president in 2016. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president in 2016, or if you would support someone else. [See below.]." Options rotated 10/14-17/15 % Hillary Clinton 45 Bernie Sanders 29 Joe Biden 18 Jim Webb 1 Lincoln Chafee - Larry Lessig - Martin O'Malley - Someone else 2 None/No one (vol.) 3 Unsure 2 9/17-19/15 9/4-8/15 8/13-16/15 7/22-25/15 6/26-28/15 % % % % % Hillary Clinton 42 37 47 56 58 Bernie Sanders 24 27 29 19 15 Joe Biden 22 20 14 15 17 Martin O'Malley 1 3 2 - 1 Lincoln Chafee - - - - - Jim Webb - 2 1 1 1 Someone else 2 7 4 4 2 None/No one (vol.) 4 4 3 3 4 Unsure 2 1 - 1 1 Without Biden (Biden supporters allocated based on 2nd choice): 10/14-17/15 % Hillary Clinton 56 Bernie Sanders 33 Jim Webb 2 Martin O'Malley 1 Lincoln Chafee - Larry Lessig - Someone else 2 None/No one (vol.) 3 Unsure 2 CBS News Poll. Oct. 4-8, 2015. N=343 Democratic primary voters nationwide. Margin of error ± 6. "Which one of these potential candidates would you like to see the Democratic Party nominate for president in 2016: [see below]?" 10/4-8/15 9/9-13/15 7/29 -

8/2/15 % % % Hillary Clinton 46 47 58 Bernie Sanders 27 27 17 Joe Biden 16 15 11 Jim Webb 2 1 2 Martin O'Malley - - 1 Lincoln Chafee - 1 1 Lawrence Lessig - n/a n/a Someone else (vol.) 1 1 - None of them (vol.) 4 2 4 Unsure/No answer 5 7 7 Fairleigh Dickinson University's PublicMind. Oct. 1-5, 2015. N=339 registered voters nationwide who are Democrats or lean to the Democratic Party. Margin of error ± 5.3. "I'm going to read you a list of declared and potential candidates for the Democratic nomination for president. If the election were held today, who would you vote for: [see below]?" % Hillary Clinton 45 Bernie Sanders 23 Joe Biden 17 Martin O'Malley 1 Jim Webb 1 Lincoln Chafee - Laurence Lessig - Other (vol.) 1 Wouldn't vote (vol.) 3 Unsure/Refused 7 Pew Research Center. Sept. 22-27, 2015. N=387 potential Democratic primary voters nationwide. Margin of error ± 5.7. "Thinking about the 2016 presidential election, who would be your first choice for the Democratic nomination for president?" Open-ended. One response accepted. % Hillary Clinton 45 Bernie Sanders 24 Joe Biden 8 Jim Webb - Martin O'Malley - Lincoln Chafee - Other (vol.) 1 None (vol.) 5 Unsure 15 Refused 1 Bloomberg Politics Poll conducted by Selzer & Company. Sept. 18-21, 2015. N=375 Democrats and Democratic-leaners nationwide. Margin of error ± 5.1. "Which one of the following Democrats would be your first choice for president: [see below]?" Open-ended % Hillary Clinton 33 Joe Biden 25 Bernie Sanders 24 Jim Webb 2 Martin O'Malley 1 Lincoln Chafee - Uncommitted (vol.) 8 Unsure 7 Monmouth University Poll. Aug. 31-Sept. 2, 2015. N=339 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5.3. "I know the 2016 election is far away, but who would you support for the Democratic

nomination for president if the candidates were [see below]?" Options rotated 8/31 -

9/2/15 7/30 -

8/2/15 7/9-12/15 6/11-14/15 3/30 -

4/2/15 % % % % % Hillary Clinton 42 52 51 57 60 Joe Biden 22 12 13 12 16 Bernie Sanders 20 16 17 12 7 Martin O'Malley 1 2 1 1 2 Jim Webb 1 2 1 2 1 Lincoln Chafee 0 0 0 0 n/a Other (vol.) 0 2 0 0 0 No one (vol.) 4 3 2 2 2 Unsure 10 11 15 14 12 Gallup Poll. Aug. 5-9, 2015. N=419 Democrats and independents who lean to the Democratic Party nationwide. Margin of error ± 6. "Suppose Joe Biden decides to run for president in the Democratic primary in 2016. Please tell me whether you will definitely support him, whether you might consider supporting him, or whether you will definitely not support him." Definitely

support Might

consider

supporting Definitely

not support Unsure % % % % 8/5-9/15 19 61 19 1 "Suppose Elizabeth Warren decides to run for president in the Democratic primary in 2016. Please tell me whether you will definitely support her, whether you might consider supporting her, or whether you will definitely not support her." Definitely

support Might

consider

supporting Definitely

not support Unsure % % % % 8/5-9/15 15 56 24 6 NBC News/Wall Street Journal Poll conducted by Hart Research Associates (D) and Public Opinion Strategies (R). July 26-30, 2015. N=253 Democratic primary voters nationwide. Margin of error ± 6.2. "And, thinking about people who might seek the Democratic nomination for president in 2016, if the next Democratic primary for president were being held today, which one of the following candidates would you favor: [see below]?" If unsure: "Well, which way do you lean?" 7/26-30/15 6/14-18/15 % % Hillary Clinton 59 75 Bernie Sanders 25 15 Jim Webb 3 4 Martin O'Malley 3 2 Lincoln Chafee 1 - Other (vol.) 1 1 None (vol.) 4 2 Unsure 4 1 CNN/ORC Poll. May 29-31, 2015. N=433 Democrats and independents who lean Democratic nationwide. Margin of error ± 4.5. "I'm going to read a list of people who may be running in the Democratic primaries for president in 2016. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president in 2016, or if you would support someone else. Joe Biden, Hillary Clinton, Martin O'Malley, Bernie Sanders, Jim Webb, or Lincoln Chafee." Options rotated 5/29-31/15 4/16-19/15 % % Hillary Clinton 60 69 Joe Biden 14 11 Bernie Sanders 10 5 Jim Webb 2 3 Martin O'Malley 1 1 Lincoln Chafee - 1 Someone else 7 5 None/No one (vol.) 5 3 Unsure 1 2 Fox News Poll conducted by Anderson Robbins Research (D) and Shaw & Company Research (R). April 19-21, 2015. N=388 likely Democratic primary voters nationwide. "I'm going to read a list of potential candidates for the 2016 Democratic nomination. Please tell me which one you would like to see as the Democratic presidential nominee. [See below.]" 4/19-21/15 3/29-31/15 % % Hillary Clinton 62 61 Elizabeth Warren 12 11 Joe Biden 9 12 Bernie Sanders 4 3 Andrew Cuomo 3 3 Martin O'Malley 1 2 Lincoln Chafee - n/a Jim Webb - 1 Other (vol.) - 1 None of the above (vol.) 4 3 Unsure 5 3 Without Clinton (Clinton supporters allocated based on 2nd choice): 4/19-21/15 3/29-31/15 % % Joe Biden 36 42 Elizabeth Warren 24 22 Andrew Cuomo 7 9 Bernie Sanders 4 3 Martin O'Malley 4 4 Lincoln Chafee 1 n/a Jim Webb 1 3 Other (vol.) - 1 None of the above (vol.) 13 8 Unsure 11 8 Quinnipiac University. April 16-21, 2015. N=569 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 4.1. "If the Democratic primary for president were being held today, and the candidates were Joe Biden, Lincoln Chafee, Hillary Clinton, Martin O'Malley, Bernie Sanders, and Jim Webb, for whom would you vote?" % Hillary Clinton 60 Joe Biden 10 Bernie Sanders 8 Martin O'Malley 3 Jim Webb 1 Lincoln Chafee - Wouldn't vote (vol.) 3 Unsure/No answer 14 Without Clinton (Clinton supporters allocated based on 2nd choice): % Joe Biden 40 Bernie Sanders 11 Martin O'Malley 8 Jim Webb 4 Lincoln Chafee 1 Someone else (vol.) 1 Wouldn't vote (vol.) 5 Unsure/No answer 30 Monmouth University Poll. March 30-April 2, 2015. N=356 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5.2. "If Hillary Clinton did not run, who would you support for the Democratic nomination for

president if the candidates were [see below]?" Options rotated % Joe Biden 34 Elizabeth Warren 18 Bernie Sanders 8 Andrew Cuomo 4 Martin O'Malley 4 Cory Booker 3 Deval Patrick 3 Jim Webb 3 Kirsten Gillibrand 2 Joe Manchin 1 Terry McAuliffe 1 Brian Schweitzer 0 No one (vol.) 1 Unsure 18 ABC News/Washington Post Poll. March 26-29, 2015. N=1,003 adults nationwide. Results below are among registered voters who are Democrats or lean Democratic. Margin of error ± 6. "I'm going to read a list of possible candidates for the Democratic nomination for president in 2016. After you hear the list, please tell me, if the 2016 Democratic presidential primary or caucus in your state were being held today, for whom would you vote? [See below.]" If unsure: "Which candidate would you lean toward?" 3/26-29/15 12/11-14/14 10/9-12/14 5/29 -

6/1/14 % % % % Hillary Clinton 66 61 64 69 Joe Biden 12 14 13 12 Elizabeth Warren 12 13 11 7 Bernie Sanders 5 4 1 2 Jim Webb 1 3 2 1 Martin O'Malley - - 1 2 None of these (vol.) 2 1 3 2 Would not vote (vol.) 1 1 0 0 Unsure 2 2 5 2 Andrew Cuomo n/a n/a n/a 2 Brian Schweitzer n/a n/a n/a 1 CNN/ORC Poll. March 13-15, 2015. N=466 Democrats and independents who lean Democratic nationwide. Margin of error ± 4.5. "I'm going to read a list of people who may be running in the Democratic primaries for president in 2016. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president in 2016, or if you would support someone else. Joe Biden, Hillary Clinton, Martin O'Malley, Bernie Sanders, Elizabeth Warren or Jim Webb." Options rotated 3/13-15/15 2/12-15/15 12/18-21/14 11/21-23/14 % % % % Hillary Clinton 62 61 66 65 Joe Biden 15 14 8 9 Elizabeth Warren 10 10 9 10 Bernie Sanders 3 3 3 5 Martin O'Malley 1 1 1 - Jim Webb 1 2 1 1 Someone else 6 6 6 4 None/No one (vol.) 2 2 2 3 Unsure 1 1 2 1 Andrew Cuomo n/a n/a 1 1 Deval Patrick n/a n/a - 1 NBC News/Wall Street Journal Poll conducted by Hart Research Associates (D) and Public Opinion Strategies (R). March 1-5, 2015. N=262 Democratic presidential primary voters nationwide. Margin of error ± 6. "Next, I'm going to mention a number of people who might seek the Democratic nomination for president in 2016. For each one, please tell me, yes or no, whether you could see yourself supporting that person for the Democratic nomination for president in 2016. If you don't know the name, please just say so. ..." Yes, could

support No, could

not support Don't know

the name Unsure % % % % "Hillary Clinton" 3/1-5/15 86 13 - 1 "Joe Biden" 3/1-5/15 54 40 3 2 "Elizabeth Warren" 3/1-5/15 51 17 29 3 "Bernie Sanders" 3/1-5/15 21 21 54 4 "Jim Webb" 3/1-5/15 15 24 57 4 "Martin O'Malley" 3/1-5/15 11 20 67 2 McClatchy-Marist Poll. March 1-4, 2015. N=462 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 4.6. Democratic Presidential Preference, including those who are leaning toward a candidate: 3/1-4/15 12/3-9/14 9/24-29/14 % % % Hillary Clinton 60 62 64 Joe Biden 13 11 15 Elizabeth Warren 12 9 8 Bernie Sanders 5 4 4 Martin O'Malley 1 1 2 Jim Webb 1 1 1 Unsure 9 11 6 Quinnipiac University. Feb. 26-March 2, 2015. N=493 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 4.4. "If the Democratic primary for president were being held today, and the candidates were Joe Biden, Hillary Clinton, Martin O'Malley, Bernie Sanders, Elizabeth Warren, and Jim Webb, for whom would you vote?" 2/26 -

3/2/15 11/18-23/14 % % Hillary Clinton 56 57 Elizabeth Warren 14 13 Joe Biden 10 9 Bernie Sanders 4 4 Jim Webb 1 1 Martin O'Malley - 1 Someone else (vol.) 1 1 Wouldn't vote (vol.) 1 1 Unsure/No answer 14 14 Without Clinton (Clinton supporters allocated based on 2nd choice): 2/26 -

3/2/15 11/18-23/14 % % Joe Biden 35 34 Elizabeth Warren 25 25 Bernie Sanders 7 6 Jim Webb 3 2 Martin O'Malley 1 2 Someone else (vol.) 1 2 Wouldn't vote (vol.) 2 1 Unsure/No answer 25 28 Fox News Poll conducted by Anderson Robbins Research (D) and Shaw & Company Research (R). Jan. 25-27, 2015. N=390 Democratic registered voters nationwide. Margin of error ± 5. "I'm going to read a list of potential candidates for the 2016 Democratic nomination. Please tell me which one you would like to see as the Democratic presidential nominee. [See below.]" 1/25-27/15 12/7-9/14 7/20-22/14 4/13-15/14 12/14-16/13 % % % % % Hillary Clinton 55 62 64 69 68 Joe Biden 17 10 12 14 12 Elizabeth Warren 12 12 9 6 7 Andrew Cuomo 4 2 5 2 4 Bernie Sanders 3 3 n/a n/a n/a Martin O'Malley 2 1 1 1 1 Jim Webb 1 1 n/a n/a n/a None of the above (vol.) 2 5 4 4 2 Unsure 3 5 4 3 6 Deval Patrick n/a n/a n/a n/a 1 Without Clinton (Clinton supporters allocated based on 2nd choice): % Joe Biden 37 Elizabeth Warren 21 Andrew Cuomo 14 Bernie Sanders 5 Martin O'Malley 4 Jim Webb 1 None of the above (vol.) 10 Unsure 7 Monmouth University Poll. Dec. 10-14, 2014. N=386 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 5. "I know the 2016 election is far away, but who would you like to see as the Democratic nominee for president?" Open-ended % Hillary Clinton 48 Elizabeth Warren 6 Joe Biden 2 Bernie Sanders 2 Andrew Cuomo 1 Other 1 No one 7 Unsure 32 CNN/ORC Poll. Nov. 21-23, 2014. N=457 Democrats and independents who lean Democratic nationwide. Margin of error ± 4.5. "I'm going to read a list of people who may be running in the Democratic primaries for president in 2016. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president in 2016, or if you would support someone else. Joe Biden, Hillary Clinton, Andrew Cuomo, Martin O'Malley, Deval Patrick, Bernie Sanders, Elizabeth Warren or Jim Webb." Options rotated Without Clinton (Clinton supporters allocated based on 2nd choice): % Joe Biden 41 Elizabeth Warren 20 Andrew Cuomo 7 Bernie Sanders 7 Martin O'Malley 4 Jim Webb 3 Deval Patrick 2 Someone else 5 None/No one (vol.) 8 Unsure/No answer 4 CNN/ORC Poll. July 18-20, 2014. N=449 Democrats and independents who lean Democratic nationwide. Margin of error ± 4.5. "I'm going to read a list of people who may be running in the Democratic primaries for president in 2016. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president in 2016, or if you would support someone else. Vice President Joe Biden, former Secretary of State Hillary Clinton, New York Governor Andrew Cuomo, Maryland Governor Martin O'Malley, or Massachusetts Senator Elizabeth Warren." Options rotated 7/18-20/14 11/18-20/13 9/6-8/13 % % % Hillary Clinton 67 63 65 Elizabeth Warren 10 7 7 Joe Biden 8 12 10 Andrew Cuomo 4 5 6 Martin O'Malley 2 2 2 Someone else (vol.) 6 6 4 None/No one (vol.) 2 3 5 Unsure 1 3 2 Quinnipiac University. June 24-30, 2014. N=610 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 4. "If the Democratic primary for president were being held today, and the candidates were [see below], for whom would you vote?" 6/24-30/14 1/15-19/14 12/3-9/13 9/23-29/13 4/25-29/13 % % % % % Hillary Clinton 58 65 66 61 65 Elizabeth Warren 11 7 7 7 n/a Joe Biden 9 8 8 11 13 Andrew Cuomo 4 3 3 2 4 Martin O'Malley 1 1 - - 1 Brian Schweitzer 1 1 1 n/a n/a Someone else (vol.) 1 1 1 - 1 Wouldn't vote (vol.) 1 - 1 2 - Unsure/No answer 15 13 12 15 14 Howard Dean n/a 2 1 n/a n/a Mark Warner n/a n/a n/a 1 1 Deval Patrick n/a n/a n/a n/a 1 CNN/ORC Poll. March 7-9, 2014. N=372 Democrats and independents who lean Democratic nationwide. Margin of error ± 5. "I'm going to read a list of people who may be running in the Democratic primaries for president in 2016. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president in 2016, or if you would support someone else. Vice President Joe Biden, former Secretary of State Hillary Clinton, New York Governor Andrew Cuomo, Maryland Governor Martin O'Malley, or former Montana Governor Brian Schweitzer." Options rotated % Hillary Clinton 64 Joe Biden 13 Andrew Cuomo 4 Martin O'Malley 4 Brian Schweitzer 3 Someone else (vol.) 6 None/No one (vol.) 5 Unsure 1 ABC News/Washington Post Poll. Jan. 20-23, 2014. N=1,003 adults nationwide. Results below are among registered voters who are Democrats or lean Democratic. "If the 2016 Democratic presidential primary or caucus in your state was being held today, and the candidates were [see below], for whom would you vote?" If unsure: "Which candidate would you lean toward?" Options rotated % Hillary Clinton 73 Joe Biden 11 Elizabeth Warren 9 None of these (vol.) 3 Unsure 4 McClatchy-Marist Poll. Dec. 3-5, 2013. N=466 registered voters nationwide who are Democrats or lean Democratic. Margin of error ± 4.5. "If the 2016 Democratic presidential primary or caucus in your state were held today, whom would you support if the candidates are [see below]?" 12/3-5/13 7/15-18/13 % % Hillary Clinton 65 63 Joe Biden 12 13 Elizabeth Warren 9 n/a Andrew Cuomo 3 6 Martin O'Malley 1 1 Unsure 9 18 "How about if the candidates are [see below]?" % Joe Biden 45 Elizabeth Warren 25 Andrew Cuomo 11 Martin O'Malley 4 Unsure 15 CNN/ORC Poll. Nov. 18-20, 2013. N=374 Democrats and independents who lean Democratic nationwide. Margin of error ± 5. "I'm going to read a list of people who may be running in the Democratic primaries for president in 2016. After I read all the names, please tell me which of those candidates you would be most likely to support for the Democratic nomination for president in 2016, or if you would support someone else. Vice President Joe Biden, former secretary of state Hillary Clinton, New York Governor Andrew Cuomo, Maryland Governor Martin O'Malley or Massachusetts Senator Elizabeth Warren." Options rotated % Hillary Clinton 63 Joe Biden 12 Elizabeth Warren 7 Andrew Cuomo 5 Martin O'Malley 2 Someone else (vol.) 6 None/No one (vol.) 3 Unsure 3 "... And who would be your second choice?" % Joe Biden 37 Hillary Clinton 16 Elizabeth Warren 14 Andrew Cuomo 14 Martin O'Malley 8 Someone else (vol.) 3 None/No one (vol.) 7 Unsure 1 First-choice, excluding Clinton (Clinton supporters reallocated based on their second choice): % Joe Biden 43 Elizabeth Warren 17 Andrew Cuomo 15 Martin O'Malley 6 Someone else (vol.) 8 None/No one (vol.) 7 Unsure 4 NBC News Poll conducted by Princeton Survey Research Associates International. Nov. 7-10, 2013. N=428 Democrats and independents who lean Democratic nationwide. Margin of error ± 5.5. "If the 2016 Democratic presidential primary were held today and Hillary Clinton were running, do you think you would vote for Hillary Clinton or for another Democratic candidate?" Hillary

Clinton Another

candidate Wouldn't

vote (vol.) Unsure Refused % % % % % 11/7-10/13 66 14 2 18 1 Fairleigh Dickinson University's PublicMind. April 22-28, 2013. N=373 Democrats and voters who lean Democratic nationwide. Margin of error ± 5.1. "I know it's early, but if the election for president were held today, which of the following people would you like to see as the Democratic candidate: Hillary Clinton, Andrew Cuomo, Joe Biden, or someone else?" Options rotated. % Hillary Clinton 63 Joe Biden 12 Andrew Cuomo 3 Other 12 Unsure 10 Refused 1 CNN/ORC Poll. Dec. 17-18, 2012. N=290 Democrats and Democratic-leaning independents nationwide. Margin of error ± 6. "I'm going to read you the names of a few people who might run for the Democratic presidential nomination in 2016. For each one, please tell me whether you would be very likely, somewhat likely, not very likely, or not likely at all to support them if they decide to run for the Democratic nomination four years from now. . . ." Very

likely Somewhat

likely Not very

likely Not likely

at all Unsure % % % % % "Secretary of State Hillary Clinton" 12/17-18/12 65 20 8 6 - "Vice President Joe Biden" 12/17-18/12 26 40 21 13 1 "Massachusetts Senator Elizabeth Warren" 12/17-18/12 16 36 26 14 8 "New York Governor Andrew Cuomo" 12/17-18/12 11 45 25 16 3 "Montana Governor Brian Schweitzer" 12/17-18/12 10 27 32 18 13 "Massachusetts Governor Deval Patrick" 12/17-18/12 8 33 29 18 11