President Donald Trump’s exchange with a supporter at his campaign rally in Sunrise, Florida, rally left the crowd of nearly 20,000 roaring with laughter.

Trump got warmed up by slamming the Democrats for their impeachment inquiry, saying they are “trying to rip our nation apart” with investigations.

The president again dismissed the process as just a continuation of the Justice Department probes into his campaign’s dealings with Russia during the 2016 election, which ultimately found no evidence of collusion. He also repeated his denials of the claim at the heart of the impeachment push: That he withheld military aid to Ukraine to get the state to look into allegations of corruption involving former Vice President Joe Biden and his son Hunter Biden.

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“First it was the Russia hoax, and now the same maniacs are pushing the deranged … impeachment” narrative,” Trump said. He accused the Democrats of trying to take him down because “they know that they cannot win the next election.”

Trump then turned to the Bidens.

“If you want to see what corruption looks like, take a look no further than slow, sleepy Joe,” Trump told the rally crowd. “I don’t know what’s going on with Joe. When sleepy Joe was in charge of Ukraine policy, his son — I call him, where is he? Where’s Hunter? Where is he? What happened to Hunter? Where is Hunter?”

Trump pointed out the “millions and millions” of dollars Hunter Biden made while serving on the board of Ukrainian energy company Burisma Holdings before asking someone near the stage what he does for a living.

On learning the man works as a bail bondsman, Trump followed up: “Do you know Hunter Biden?”“Do you know sleepy Joe? Bail bonds!”

The crowd erupted in laughter and applause.

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“Did you ever work on energy before?” he joked with the man. “You know more about energy — he said ‘no’ — You know more about energy than Hunter. You know much more.”

Everyone gets what Trump saying to the bail bondsman

Biden’s role at Burisma has come under intense scrutiny following accusations by Trump that, as vice president, Joe Biden improperly tried to help the company. While the claims have not be substantiated, Hunter Biden acknowledged in an ABC News interview last month that being the son of the then-vice president “of course” played a role in him getting the job.

Between April 2014 and last month, when he stepped down from the board, Biden reportedly made an average of $50,000 a month at the company. Sources close to Burisma said he attended twice-yearly meetings, with one calling him a “ceremonial figure.”