Sen. Bernie SandersBernie SandersBriahna Joy Gray: Biden campaign promises will struggle if Republicans win back Congress Biden backs COVID-19 vaccine patent waivers McConnell sidesteps Cheney-Trump drama MORE (I-Vt.) on Thursday vowed not to let President-elect Donald TrumpDonald TrumpCaitlyn Jenner on Hannity touts Trump: 'He was a disruptor' Ivanka Trump doubles down on vaccine push with post celebrating second shot Conservative Club for Growth PAC comes out against Stefanik to replace Cheney MORE get away with going after minority groups.

"If Donald Trump takes people's anger and turns it against Muslims, Hispanics, African Americans and women, we will be his worst nightmare," the Vermont senator tweeted.

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Sanders on Wednesday released a statement signaling a willingness to work with Trump on certain policies.

“To the degree that Mr. Trump is serious about pursuing policies that improve the lives of working families in this country, I and other progressives are prepared to work with him," the Vermont senator said in a statement released Wednesday.

"To the degree that he pursues racist, sexist, xenophobic and anti-environment policies, we will vigorously oppose him.” 

After battling Hillary ClintonHillary Diane Rodham ClintonPelosi's archbishop calls for Communion to be withheld from public figures supporting abortion rights Hillary Clinton: Biden less 'constrained' than Clinton and Obama due to prior administration Biden's unavoidable foreign policy crisis MORE in the Democratic presidential primary, Sanders endorsed Clinton and campaigned for her and against Trump in battleground states.

Throughout the presidential race, the Vermont senator made the case for why voters should support Clinton and cast Trump as unqualified for the White House.