Talk of Biden replacement heats up following 'weak' debate performance: 'He failed'

President Biden's performance in Thursday night's debate quickly garnered attention from Democrats and liberal media figures, many of whom expressed concern over the president's "weak" performance and discussed talk of him dropping out of the race.

Shortly after the conclusion of the debate in Atlanta, Ga., a firestorm erupted with talk of Democrats replacing Biden as their party's nominee in the 2024 presidential election.

One well-connected Democratic source told Fox News after the debate that the House and the Senate are Republican – for now, adding that "everyone is freaking out" and that Biden "needs to go."

But there is "no way they replace him unless he agrees," the source said.

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Former Missouri Sen. Claire McCaskill, a Democrat, said during an appearance on MSNBC after the debate that Biden "failed" to show Americans he was "up to the job at his age."

"My job now is to be really honest. Joe Biden had one thing he had to do tonight, and he didn't do it. He had one thing he had to accomplish and that was reassure America that he was up to the job at his age. And he failed at that tonight," she said.

"Now, does that mean my phone blowing up with senators and campaign operatives and donors, big donors from all over the country, does that mean Joe Biden is not gonna be the candidate? I don't know that. I think we'll know a lot more in a few weeks," McCaskill said.

McCaskill said her heart was "breaking" after Biden's performance and that there were "a lot of people who watched [the debate] and felt terrible for Joe Biden."

The talk about Democrats weighing their options on who will serve as the party's presidential nominee was