CNN anchor Jake Tapper roasted 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 and 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 for their volatile exchange this week, reminding people that the two "tough guys" both received several deferments from the military draft.

“Reminder that between the two of these tough guys are nine Vietnam deferments and claims they couldn’t serve because of asthma and bone spurs,” Tapper tweeted on Thursday.

Reminder that between the two of these tough guys are nine Vietnam deferments and claims they couldn’t serve because of asthma and bone spurs. — Jake Tapper (@jaketapper) March 22, 2018

Tapper followed up by praising his father-in-law, Sgt. Tom Brown, who “isn’t running around talking about how tough he is.”

You know who’s a tough guy from that generation? My father in law, Sgt Tom Brown, enlisted in the US Air Force 1966, honorably discharged 1969. In country from 1968-1969, in the 12th Security Police Squadron Pacific Air Command. Isn’t running around talking about how tough he is. — Jake Tapper (@jaketapper) March 22, 2018

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There were reportedly ten draft deferments between Biden and Trump during the Vietnam War.

Biden received five student draft deferments and was disqualified from service because of teenage asthma, The Associated Press reported.

Trump received five deferments during the war because of his education and from bone spurs in his heels, according to The New York Times.

The online feud began after Biden's comments at an anti-sexual assault rally on Tuesday.

"A guy who ended up becoming our national leader said, 'I can grab a woman anywhere and she likes it,'" Biden reportedly said at the event.

"They asked me if I’d like to debate this gentleman, and I said no. I said if we were in high school, I’d take him behind the gym and beat the hell out of him.'"

Biden reportedly said he was a pretty good athlete and said guys who spoke inappropriately of women were “usually the fattest, ugliest S.O.B. in the room.”

Trump then fired back on Thursday.

“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,” the president said.

“He doesn’t know me, but he would go down fast and hard, crying all the way,” he added.

“Don’t threaten people Joe!”

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 had also remarked during the 2016 presidential race about taking on Trump "behind the gym" during a rally for Democratic nominee Hillary Clinton, slamming Trump's "disgusting" comments about women following the release of the infamous "Access Hollywood" tape.