Socialist Sen. Bernie Sanders thinks there’s “no question” he’s more progressive than Joe Biden, regardless of what the former vice president has to say.

Sanders appeared on This Week on Sunday to discuss 2020 and shrugged off comments Biden made in March claiming to have “the most progressive record of anybody running” for president.

“Well, look, Joe is a good friend of mine, and I’m not here to attack Joe,” Sanders said. “Joe voted for the war in Iraq, I led the effort against it. Joe voted for NAFTA and permanent normal trade relations, trade agreements with China. I led the effort against that.

“Joe voted for the deregulation of Wall Street, I voted against that,” Sanders said. “You know, I think if you look at Joe’s record and you look at my record, I don’t think there’s much question about who’s more progressive.”

Sanders explained in the one-on-one interview that he wants to beat Biden on the issues, because there’s clear distinctions between how the two men have voted throughout their decades in the Senate.

“I disagree with many of the votes he cast. He and I voted in very different ways. I have stood up for the right of people to have healthcare because they are an American citizen,” Sanders said. “I don’t think that’s Joe’s position.

“What I do want to say … is that I hope on the Democratic side that what the campaign is about is a discussion of issues, not personal attacks,” he said, adding that removing Trump should be the top goal.

“I think I can feel safe to say that no matter who the candidate is we’re all going to come together to defeat the most dangerous president in modern American history, and that is Donald Trump,” Sanders said.

The comments come more than a month after Biden boasted his progressive record during a speech at a Democratic Party in Delaware, where he took aim at the “new left” faction of the party inspired by Sanders’ 2016 presidential campaign. Biden’s remarks at the event drew attention because he nearly referred to himself as a candidate before officially announcing his run in late April.

“I’m told I get criticized by the left,” Biden told his hometown audience, according to The Hill. “I have the most progressive record of anybody running for the … anybody who would run.”

Sanders’ interview with This Week occurred during a stop in Iowa, where he nearly won the state’s caucuses in 2016. Sanders told ABC News White House correspondent Jonathan Karl the close race with Hillary Clinton birthed a new progressive movement that’s already reshaping America.

“You know when I talked about a $15 minimum wage … four years ago, that was too radical, that was extreme,” he said. “Today, six states have already passed that and I suspect the U.S. House will pass $15 an hour in the next month or two. So ideas that we’ve brought forth have helped transform the discussion in America.”

If America elects Sanders, the progressive “discussion” will become a nationwide reality, including socialist promises like Sanders’ $30 trillion Medicare for All plan to replace another failed Democrat policy: Obamacare.

“(T)he system today is truly dysfunctional,” Sanders told Karl. “All that I want to do is expand Medicare over a four year period to cover every man, woman and child in this country …”