Sanders: 2020 Dems will rally around nominee to ‘defeat Donald Trump’

Sen. Bernie SandersBernie SandersSenate Democrats push for arms control language in defense policy bill Top adviser on Sanders: 'He's always been underestimated' 'The Simpsons' pokes fun at Trump's feud with 'the squad' MORE (I-Vt.) told "Late Night With Seth Meyers" on Thursday that no matter who wins the Democratic nod, all of the candidates will rally around the nominee in order to "defeat Donald TrumpDonald John Trump Former US ambassador: 'Denmark is not a big fan of Donald Trump and his politics' Senate Democrats push for arms control language in defense policy bill Detroit county sheriff endorses Booker for president MORE."

“We all understand that no matter who wins, everybody is going to rally around that candidate and defeat Donald Trump,” the 2020 contender said. 

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Sanders also acknowledged that it is awkward to be running against so many of his fellow Democrats, including a number of senators he sees regularly. 

"We all have lunch together every Tuesday and you got half the caucus running for president,” he quipped.

Thus far, there has not been much quibbling between the many Democrats running for the party's 2020 nomination and some have said they're running against their friends. 

The already crowded field includes Sens. Kamala HarrisKamala Devi HarrisSenate Democrats push for arms control language in defense policy bill Top adviser on Sanders: 'He's always been underestimated' 'The Simpsons' pokes fun at Trump's feud with 'the squad' MORE (D-Calif.), Elizabeth WarrenElizabeth Ann WarrenSenate Democrats push for arms control language in defense policy bill Top adviser on Sanders: 'He's always been underestimated' 'The Simpsons' pokes fun at Trump's feud with 'the squad' MORE (D-Mass.) and Cory BookerCory Anthony BookerSenate Democrats push for arms control language in defense policy bill Detroit county sheriff endorses Booker for president 'The Simpsons' pokes fun at Trump's feud with 'the squad' MORE (D-N.J.). Former Vice President Joe BidenJoe BidenTop adviser on Sanders: 'He's always been underestimated' 'The Simpsons' pokes fun at Trump's feud with 'the squad' 'Forever war' slogans short-circuit the scrutiny required of national security choices MORE and former Rep. Beto O'RourkeBeto O'RourkeThe Hill's Morning Report - Trump hews to NRA on guns and eyes lower taxes Harris to appear in CNN climate town hall after backlash Castro qualifies for next Democratic primary debates MORE (D-Texas) are also considering jumping in the quickly growing field.

Sanders, a self-described democratic socialist, is viewed as one of the front-runners after he finished second to Hillary ClintonHillary Diane Rodham ClintonThe Memo: Polls flash warning signs for Trump Polls suggest Sanders may be underestimated 10 declassified Russia collusion revelations that could rock Washington this fall MORE for the party's nomination in 2016. 

Sanders and Biden are leading the field possible candidates in New Hampshire, according to a poll published Thursday.