Biden says Trump deserves a PUNCH and mocks his hair before having a battle with the teleprompter by reading: 'Four more years. Pause'

President Joe Biden took the gloves off Wednesday by saying former President Donald Trump deserved to be punched and injected bleach into his hair - while engaging in his own battle with the teleprompter. 

Biden addressed the North America's Building Trades Unions conference in Washington, D.C. on the heels of winning the union's endorsement in the 2024 presidential race. 

He teased the crowd about what all he could accomplish if given 'four more years,' though read out loud the teleprompter's direction to 'pause,' creating an awkward moment of silence before the audience delivered a 'four more years' chant. 

Biden told the droves of union workers that Trump 'looks down on us.' 

'Think about the guys you grew up with who you would like to get into the corner and just give them a straight left,' Biden said. 'I'm not suggesting we hit the president. But we all knew guys like that growing up.'

President Joe Biden took the gloves off Wednesday by saying former President Donald Trump deserved to be punched and injected bleach into his hair - while engaging in his own battle with the teleprompter

Members of NABTU hold up signs in support of President Joe Biden after the union offered the Democratic president its endorsement Wednesday 

He took another verbal swing at Trump while bringing up the former president's handling of the COVID-19 pandemic.  

'By the way, remember when he was trying to deal with COVID and he said just inject a little bleach in your veins?' Biden asked 'He missed - it all went to his hair.'

That joke got the audience going.

'I shouldn't have said that,' Biden said.  

'You guys are a bad influence on me,' the president added laughing. 

NABTU's endorsement of Biden was mostly due to him signing the bipartisan infrastructure law, which jumpstarted construction projects across the nation.  

Ahead of Biden's appearance the union played a nearly five minute-long video, in which NABTU President Sean McGarvey made the case against Trump to union membership

Biden said Wednesday that Trump 'looks down on us.' 'Think about the guys you grew up with who you would like to get into the corner and just give them a straight left,' Biden said. 'I'm not suggesting we hit the president. But we all knew guys like that growing up'

In the video McGarvey talked about how he's known Trump since the 1980s. 

'The only difference between the Donald Trump of the 80s and the Donald Trump of today is he feels totally free to let his dark side out. And his dark side is very very dark and very very dangerous for this country,' McGarvey said. 

McGarvey talked about how Trump, as president, promised to help NABTU workers get their pensions fixed. 

Trump, however, didn't deliver. 

McGarvey also called out Trump for never delivering on an infrastructure package. 

'Donald Trump is incapable of running anything, let alone the most powerful country in the history of the wrold and God help us if he gets anywhere near that White House in the future,' the union boss said. 

After the event wrapped up, the Trump campaign almost immediately highlighted Biden's teleprompted hiccup. 

'Cognitively Impaired Joe Biden Reading Teleprompter: "Four More Years? Pause?"' the Trump campaign's press release read, sharing the short video clip. 

Later the Biden campaign issued a statement on the campaign events Trump held on Wednesday - since there's a break every Wednesday in the Stormy Daniels' hush money trial.

'He had none,' said Biden spokesman James Singer. 

Trump has complained about the unfairness of his court appearances keeping him from the campaign trail.