President Joe Biden tried to squash bubbling concerns over his electability with a campaign cash swing in California as his 2024 White House reelection campaign lumbers toward another likely rematch with former President Donald Trump.

Biden, who would be 82 at the start of a second term, recently escaped charges in the investigation into his mishandling of classified documents, but special counsel Robert Hur’s report on the matter raised new questions about Biden’s age and general fitness for office.