More voters think former Vice President Joe Biden Joe BidenJoe Biden looks to expand election battleground into Trump country Trump puts Supreme Court fight at center of Ohio rally Special counsel investigating DeVos for potential Hatch Act violation: report MORE would win in a fist fight against President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE than the other way around.

A Tuesday survey from Public Policy Polling, a left-leaning organization, finds 37 percent of voters think Biden would win in a fist fight against Trump, compared to 32 percent who think Trump would win.

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Another 30 percent of respondents don't have an opinion.

The poll comes after Biden said earlier this month that in high school he would have taken Trump "behind the gym and beat the hell out of him" over the president's comments about women.

Trump hit back in a tweet, ripping Biden as "both mentally and physically" weak.

Crazy Joe Biden is trying to act like a tough guy. Actually, he is weak, both mentally and physically, and yet he threatens me, for the second time, with physical assault. He doesn’t know me, but he would go down fast and hard, crying all the way. Don’t threaten people Joe! — Donald J. Trump (@realDonaldTrump) March 22, 2018

Biden later expressed some regret over his comments.

"I shouldn't have said what I said ... because I don't want to get down in the mosh pit with this guy," Biden said during an interview for the "Pod Save America" podcast.

The poll was conducted from March 23-25 among 846 registered voters. The margin of error is 3.4 percentage points.