U.S. President Joe Biden on Tuesday acknowledged his performance during last Thursday's presidential debate wasn't his best, but blamed it on jet lag after two overseas trips earlier in June. Biden has faced mounting questions about his 2024 reelection bid after last week's shaky debate performance, with one House of Representatives fellow Democrat on Tuesday publicly calling on him to withdraw from the race. Speaking at a campaign event in McLean, Virginia, on Tuesday evening, Biden admitted the debate against former President Donald Trump, his Republican rival, did not go well.