Jimmy Fallon Mocks Donald Trump Over Health Fears Claiming It Is 'Physically Impossible' To Bend Down

Jimmy Fallon joked that President Donald Trump could not 'bend at the knee' during the Wednesday, 23 September 2026, episode of The Tonight Show Starring Jimmy Fallon.

The line followed a speech in New York by Iranian President Masoud Pezeshkian, who told the UN General Assembly that his country would not yield to US pressure. Fallon's remark was a punchline, not a claim about the president's physical condition.

The UN address came a day after Trump spoke about Iran at the General Assembly. On the same Wednesday, Trump greeted Chinese President Xi Jinping at Joint Base Andrews, outside Washington, ahead of Xi's White House visit.

Fallon drew on both events in his monologue, using the airport greeting for a mock advert and the Iranian president's words for a separate joke.

Jimmy Fallon Turns 'Bend at the Knee' Into a Trump Punchline

Pezeshkian rejected what he described as US threats and pressure in his address. Referring to Trump's remarks the previous day, he said Iran's resistance would grow in the face of sanctions and pressure. He ended that passage with the declaration, 'We will never bow our head or bend at the knee.'

The phrase referred to Iran's refusal to submit to political demands. Fallon took the words literally. After recounting the Iranian president's response to Trump, he imagined the US president replying that he would never do so because it was 'physically impossible.'

Fallon was speaking in Trump's imagined voice. The president did not make that statement, and nothing in the joke establishes whether he can kneel or bend down. Presenting the punchline as a health finding would change what viewers heard.

The Iranian president's speech addressed his country's relationship with the United States. He also said Iran was ready for dialogue and negotiations without accepting force. Those remarks were part of a diplomatic message; Fallon's response was a comic aside based on one expression from it.

The joke was brief. It did not include a medical source, an account of Trump struggling to move or a new disclosure about his health. Its effect came from taking a familiar phrase about refusing to surrender and applying it to an imagined physical action.

Jimmy Fallon Imagines an 'Uber Trump' Airport Service

Earlier in the monologue, Fallon turned Trump's welcome for Xi into a fictional airport service. Trump had greeted Xi at Joint Base Andrews when the Chinese leader arrived on Wednesday. Fallon described the reception as though Trump had picked up a passenger and introduced a mock advert for 'Uber Trump.'

The advert treated the president as a ride-hailing driver. A voiceover made claims about the service, and the programme cut to selected footage of Trump for the punchlines. When the voiceover mentioned an electric car, a clip showed Trump speaking favourably about Tesla. The edit was a joke about the imagined driver's credentials, not evidence that Trump owned such a car.

A claim that the driver spoke multiple languages was followed by footage of Trump reading Spanish. Another line about knowing where passengers wanted to go was paired with a clip of him asking where he was going. The humour came from the contrast between the advert's promises and the clips chosen to follow them.

The sketch also suggested that passengers would have to pay for petrol. It ended with a gag about the driver being asleep if a passenger wanted a quiet journey. These were lines in a parody, not descriptions of an actual transport service or findings about Trump's conduct at an official event.

Fallon's two routines had distinct starting points; Xi's arrival supplied the airport advert, while Pezeshkian's UN speech supplied the line about kneeling. They were jokes built from events that had taken place earlier that Wednesday.