2024 election updates: 'I've gotta finish this job,' Biden says

Biden has wrapped up a nearly hourlong news conference in which he batted away questions about his age and fitness for office, while defending his record.

The president opened with an eight-minute statement, largely about the NATO summit he hosted in Washington, before taking reporters' questions.

Biden called on reporters from 10 news organizations. He was asked about Democrats calling on him to drop his reelection bid, Vice President Kamala Harris and foreign policy.

The president insisted that he has no plans to drop out to make room for Vice President Kamala Harris or anyone else.

Asked if he would considering bowing out before November if shown data that Harris could perform better against Trump, Biden responded, "No, unless they came back and said, 'There's no way you can win.'"

"No one's saying that," Biden said. "No poll says that."

He conceded that there are probably other candidates "who can beat Trump" but pointed to his campaign's strong fundraising and operations in battleground states, noting that anyone other than him would have "to start from scratch."

"I think I am the best qualified to win," Biden said as his news conference neared an end. "But there are other people who could beat Trump, too."

"But it would be hard to start from scratch," he quickly added. "We talk about money raised. We are not doing bad. We've got about $220 million in the bank. We are doing well."

Asked if he is going to take a cognitive test before the election amid questions about his mental fitness in the wake of the debate, Biden said that if his doctor told him he needed to, he would.

Biden said he has taken three "significant" neurological exams during his presidency, most recently in February.

"They say I am in good shape," he said, reiterating that he is tested "every single day" on his neurological capacity in his job.

The president added, "No matter what I did, not everyone is going to be satisfied."