Biden makes appeals to donors as concerns persist over his presidential debate performance

President Joe Biden looked to recapture his mojo and reassured donors at a Saturday fundraiser that he is fully up to the challenge of beating Donald Trump.

“I didn’t have a great night, but I’m going to be fighting harder,” Biden told attendees at the home of New Jersey Gov. Phil Murphy. “Donald Trump is a genuine threat to the nation,” he emphasized, saying that his predecessor would undermine democracy if returned to the White House and his economic ideas would worsen inflation.

The 81-year-old’s troubling performance at the first presidential debate Thursday rattled many Democrats, who see...