Sen. Bernie Sanders Bernie SandersSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Schumer, Sanders call for Senate panel to address election security MORE (I-Vt.) leads the Democratic presidential primary field in New Hampshire, while the race has become a three-way tie between Sanders and two of his top-tier opponents in Iowa, according to a new poll.

Sanders has support of 27 percent of primary voters in New Hampshire, a state he carried in his 2016 presidential bid, according to a CBS poll released Sunday.

Former Vice President Joe Biden Joe BidenThe Memo: Warning signs flash for Trump on debates Senate Republicans signal openness to working with Biden National postal mail handlers union endorses Biden MORE closely trails Sanders by 2 points, at 25 percent, which is within the poll’s 5.3 percentage point margin of error, while Sen. Elizabeth Warren Elizabeth WarrenNo new taxes for the ultra rich — fix bad tax policy instead Democrats back away from quick reversal of Trump tax cuts It's time for newspapers to stop endorsing presidential candidates MORE (D-Mass.) is a more distant third, at 18 percent, with South Bend, Ind., Mayor Pete Buttigieg Pete ButtigiegBogeymen of the far left deserve a place in any Biden administration Overnight Defense: Woodward book causes new firestorm | Book says Trump lashed out at generals, told Woodward about secret weapons system | US withdrawing thousands of troops from Iraq A socially and environmentally just way to fight climate change MORE in fourth at 13 percent, based on the poll.

ADVERTISEMENT

Warren saw a stark 13-point decrease in support in New Hampshire since November, when she was leading the field in the Granite State with 31 percent support compared to Biden’s 22 percent and Sanders’s 20 percent.

In Iowa, Sanders, Biden and Buttigieg each received 23 percent support, with Warren getting 16 percent in the most recent poll.

Warren’s support dipped 2 points from a November poll while Sanders and Biden each increased support by 1 point and Buttigieg by 2 points to maintain their top spots in the first voting state ahead of next month’s caucus.

Sen. Amy Klobuchar Amy KlobucharEPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates Biden marks anniversary of the Violence Against Women Act, knocks Trump and McConnell MORE (D-Minn.), who has seen a surge in support after a strong performance in last month’s debate, is in fifth place in both New Hampshire and Iowa at 7 percent.

The poll was conducted by YouGov between Dec. 27 and Jan. 2. The poll surveyed 2,000 registered voters in Iowa including 953 self-identified Democrats and Democratic-leaning independents in Iowa; it surveyed 1,100 registered voters in New Hampshire, including 510 self-identified Democrats and Democratic-leaning independents. The margin of error is 3.8 percentage points in Iowa and 5.3 percentage points in New Hampshire.