Biden Advisers Discuss How to Convince Him to Step Aside

Some longtime aides and advisers to President Biden have become increasingly convinced that he will have to step aside from the campaign, and in recent days they have been trying to come up with ways to persuade him that he should, according to three people briefed on the matter.

A small group of Mr.

Biden’s advisers in the administration and the campaign — at least two of whom have told allies that they do not believe he should keep trying to run for a second term — have said they would have to convince the president of several things.

They said they have to make the case to the president, who remains convinced of the strength of his campaign, that he cannot win against former President Donald J. Trump. They have to persuade him to believe that another candidate, like Vice President Kamala Harris, could beat Mr. Trump. And they have to assure Mr. Biden that, should he step aside, the process to choose another candidate would be orderly and not devolve into chaos in the Democratic Party.

Among the biggest obstacles that those people see is convincing Mr. Biden that he cannot win. The president told confidants before his disastrous debate showing on June 27 that he believed he had a better chance of winning a second term than Ms. Harris had at winning, according to a person told of the matter.

Two people close to the president said he remained convinced that he had a better chance of winning than she did.