Democratic 2020 presidential candidate and former Vice President Joe Biden addresses the Presidential Forum at the NAACP's 110th National Convention at Cobo Center in Detroit, Michigan, on July 24, 2019. (Jeff Kowalsky/AFP/Getty Images)

Three New 2020 Polls Show Joe Biden in Second Place

While former Vice President Joe Biden remains on top in national 2020 polls, several new state polls show him in second place.

A CBS News/YouGov poll (pdf) of registered Democrat New Hampshire voters conducted from Aug. 28 to Sept. 4 showed 27 percent of respondents saying they’d vote for Sen. Elizabeth Warren (D-Mass.) if the Democratic primary in the state were held today.

Biden got 26 percent and Sen. Bernie Sanders (I-Vt.) got 25 percent. No one else got over 10 percent.

In another question, asked to select every candidate they’re thinking about supporting, 61 percent of respondents selected Warren, 50 percent selected Sanders, 48 percent selected Biden, 33 percent selected South Bend, Indiana, Mayor Pete Buttigieg, and 30 percent selected Sen. Kamala Harris (D-Calif.).

The sample was 526 voters and the margin of error was plus/minus 5.2 percent.

A previous poll in the state conducted by Gravis in early August showed Sanders on top with 21 percent, followed by Biden with 15 percent, and Warren with 12 percent. Another poll conducted by the Boston Globe and Suffolk University around the same time showed Biden on top with 21 percent.

Democratic presidential candidate Sen. Elizabeth Warren (D-Mass.) on the campaign trail on Sept. 2, 2019. (Scott Eisen/Getty Images)

A CBS News/YouGov poll (pdf) of voters in Nevada conducted from Aug. 28 to Sept. 4 showed Sanders on top with 29 percent, to Biden’s 27 percent and Warren’s 18 percent.

No one else had over 10 percent.

When they were asked to select every candidate they’re thinking about supporting, 57 percent chose Warren, 55 percent selected Sanders, and 50 percent chose Biden. Harris (29 percent) and Buttigieg (22 percent) were in fourth and fifth, respectively.

The survey sample was 624 voters, with a margin of error of plus/minus 4.9 percent.

Previous polls in Nevada showed Biden on top by at least 6 percent.

Democratic presidential candidate Sen. Bernie Sanders (I-Vt.) speaks at George Washington University in Washington on July 17, 2019. (Patrick Semansky/AP Photo)

An Emerson Polling survey conducted among Colorado primary voters showed Sanders on top with 26 percent. About a quarter of respondents chose Biden, 20 percent selected Warren, and 13 percent chose Harris.

The survey of 403 voters was released last week but conducted from Aug. 16 to Aug. 19. It had a margin of error of plus/minus 4.8 percent.

In other states, Biden still led.

A Boston Globe/Suffolk poll of voters in Massachusetts—Warren’s home state—conducted from Sept. 3 to Sept. 5 showed Biden with 26 percent, compared to Warren’s 24 percent and Sanders’s 8 percent.

The last poll there, conducted in April by Emerson Polling, showed Sanders on top.

Approximately 25 percent of the 500 respondents told the Globe/Suffolk that they didn’t know who they were going to vote for in the state’s Democratic caucus.

(L) Joe Biden, (C) Elizabeth Warren, (R) Bernie Sanders in file photos. (Alex Wroblewski/Scott Eisen/Joe Raedle/Getty Images)

A CBS News/YouGov poll of Iowa Democratic caucus voters also found Biden on top. About 29 percent of respondents chose him, versus 26 percent choosing Sanders and 17 percent choosing Warren.

Warren was on top again when respondents were asked to list all of the candidates they’re thinking about supporting, slightly ahead of Sanders and Biden.

The poll was conducted among 835 voters and had a margin of error of 4.3 plus/minus percent.

A Monmouth University poll conducted in early August in Iowa saw Biden on top with a larger lead.

In addition to polls in California and Texas, national polls still showed Biden on top. An ABC News/Washington Post poll conducted in early September showed Biden on top 29 percent to Sanders’s 19 percent and Warren’s 18 percent; an Economist/YouGov poll also conducted in early August showed Biden with 26 percent support, compared to 22 percent for Warren and 14 percent for Sanders.

Several polls conducted in late August also showed the former vice president on top with leads as large as 16 percentage points.