Sen. Bernie SandersBernie SandersWhat the shift in Senate control means for marijuana policy reform Business groups prepare for lobbying push against minimum wage Schumer: Senate could pave way for reconciliation on COVID relief next week MORE (I-Vt.) on Thursday called President-elect Donald TrumpDonald TrumpBlinken holds first calls as Biden's secretary of State Senators discussing Trump censure resolution Dobbs: Republicans lost in 2020 because they 'forgot who was the true leader' MORE a "pathological liar" who "changes his mind every single day."

"What do you do when you have a president-elect, soon to be president, who — and I say this not happily, but I think most people who observe him would agree — is a pathological liar who changes his mind every single day," the former presidential candidate said in an interview with MSNBC.
 
The lawmaker then said that he hopes to see a new political movement of millions of Americans who "actually are following reality."
 
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"I am working very hard on this, and we need the help of the American people obviously ... to build a movement of millions of people who actually are following reality. And that's the challenge. Real change in this country, I am more and more convinced of it, is not going to come from Capitol Hill; it's got to come from grassroots America," he said.
 
In his interview Sanders also remarked on the upcoming MSNBC Wisconsin town hall on Monday and said that he hopes to learn why Americans voted for the Republican nominee over Democrat Hillary ClintonHillary Diane Rodham ClintonEverytown urges Rep. Marjorie Taylor Greene to resign over newly uncovered remarks Marjorie Taylor Greene expressed support on Facebook for violence against Democrats McConnell last spoke to Trump on Dec. 15 MORE.
 
"I want the truth. I really want to hear why people voted the way they voted. I want to hear why people voted for Donald Trump, what their expectations were, why they didn't vote for Secretary Clinton," he said.
 
"Second of all, I want to bounce off the people their views about what a progressive agenda is," Sanders added, stating that he wants to know if progressive policies are attractive to the working class.
 
Sanders has previously said he would be willing to work with Trump on strengthening the middle class but has remained critical about the president-elect's rhetoric.