President Joe Biden delivers remarks during the CNN Presidential Debate at the CNN Studios on June 27, 2024 in Atlanta, Georgia. Many of the Democratic Party's top fundraisers are privately sounding the alarm after President Joe Biden's disappointing debate performance Thursday against Republican former President Donald Trump. CNBC began hearing from worried Democratic campaign donors and fundraisers less than 20 minutes into the 90-minute debate hosted by CNN. "Game over," said a longtime Democratic campaign advisor, who has been raising money for congressional leaders for over a decade and helped raise money for Biden's 2020 White House bid. Biden's campaign co-chair Mitch Landrieu told NBC News this was because the president had a cold.

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Persons: Joe Biden, Joe Biden's, Donald Trump, Biden, Biden's, He's, doesn't, Jaime Harrison, Ronald, Reagan, George W, Bush, Barack, Obama, I've, we've, Jack Tapper, Tapper, Mitch Landrieu, Landrieu, Kamala Harris, Trump, Kate Bedingfield Organizations: CNN, CNN Studios, Democratic, Republican, CNBC, Democratic National, NBC News, Patrol, Democratic National Convention, White House Locations: Atlanta , Georgia