US President Joe Biden called former President Donald Trump a "convicted felon" who "snapped" after the 2020 election at a campaign event Monday.

Iran PressAmerica: "For the first time in American history, a former president that is a convicted felon is now seeking the office of the presidency," Biden told the crowd at the fundraising event in Greenwich, Connecticut. "But as disturbing as that is, more damaging is the all-out assault Donald Trump is making on the American system of justice."

Trump was found guilty of 34 counts of falsifying business records in his New York hush money trial. Biden addressed Trump's conviction Friday, taking a swipe at the attacks Trump and his allies have lobbed at the justice system.

“It’s reckless, it’s dangerous, it’s irresponsible for anyone to say this was rigged just because they don’t like the verdict,” Biden told reporters at the White House last week.

Biden made similar remarks Monday, saying, "It's reckless and dangerous for anyone to say that’s rigged just because they don’t like” the outcome.

"Something snapped in this guy for real" after the 2020 election, Biden said. "It’s literally driving him crazy."

Biden also called Trump "unhinged." 

NBC News was first to report last week that in the lead-up to Trump’s conviction, Biden’s campaign had explored taking a more aggressive position on his legal issues. Those discussions included the possibility of referring to Trump as a "convicted felon," NBC News reported.