During a CNN town hall style interview Monday night, Sen. Bernie Sanders (I-Vt.) was challenged to compliment Donald Trump Donald John TrumpREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails Trump urges North Korea to denuclearize ahead of summit Venezuela's Maduro says he fears 'bad' people around Trump MORE.

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Sanders was asked a variety of questions, including from a student at George Washington University who noted that Sanders has called the president-elect a pathological liar and asked, “in an effort to inspire a cohesive front,” if Sanders could name Trump’s “strongest attribute.”

“You think I should say something good about him now?” Sanders asked with a smile.

“That’s not a hard question for me to answer,” he added.

“Trump took on the Republican establishment, he took on the Democratic establishment, took on the media establishment and he ended up winning the election to become president of the United States. And that is an extraordinary accomplishment. And it talks about perseverance, it talks about very strong political instincts, it talks about a way to connect with people.”

“So I give Donald Trump his due,” he added.