Sen. Bernie Sanders Bernie SandersButtigieg stands in as Pence for Harris's debate practice Bernie Sanders warns of 'nightmare scenario' if Trump refuses election results Harris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda MORE (I-Vt.) says that Tuesday's midterm elections will be a referendum on whether Americans are comfortable with a president who he says is a "pathological liar."

In an interview with CNN, the Vermont senator issued familiar attacks aimed at President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's credibility, arguing that he lies about "every possible thing."

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"What this election is really about is whether we feel comfortable, Anderson, about having a president who is a pathological liar," Sanders told CNN's Anderson Cooper on Monday night. "Who lies every day about every imaginable thing."

"And whether we as Americans are comfortable having a president who tries to divide us up, divide us up based on the color of our skin or the country we came from or our sexual orientation or our religion," Sanders added. "And ultimately, I don't think the American people want us to move in that direction."

Sanders, who ran an insurgent bid for the Democratic presidential nomination in 2016 and is considered a top potential candidate in 2020, is a regular critic of Trump.

Allies of the Vermont senator said in September that they expect Sanders to make another White House bid, and Sanders himself has campaigned across the country in recent months for Democratic candidates aligned with his progressive message.

Earlier this year, Sanders attacked the Republican Party as "bankrupt intellectually" while defending House Minority Leader Nancy Pelosi Nancy PelosiPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare House lawmakers reach deal to avert shutdown Centrist Democrats 'strongly considering' discharge petition on GOP PPP bill MORE (D-Calif.) amid GOP attacks.

"The Republican Party is bankrupt intellectually. They are not going to campaign on their views of giving tax cuts to billionaires and cutting Social Security and Medicare and Medicaid, so they have to come up with some demon and I guess their demon now is Nancy Pelosi," he said on "CBS This Morning."