Willie Brown to Donald Trump: Mention My Name Again and Get Sued

Willie Brown, the former mayor of San Francisco, had a message for former President Donald J. Trump on Saturday afternoon: Keep my name out of your mouth or get sued.

He stood with his longtime lawyer, Joe Cotchett, on a sidewalk in downtown San Francisco, outside John’s Grill, the Saturday spot on Mr. Brown’s lunchtime rotation, and told reporters that he would sue Mr. Trump for slander and defamation if he repeated his concocted helicopter story one more time.

“He’s never brought a lawsuit in his life,” Mr. Cotchett said of Mr. Brown. “But you know who’s pushing him to it? A guy by the name of Trump.”

Mr. Trump and Mr. Brown have been verbally sparring since Mr. Trump falsely claimed at a news conference on Aug. 8 at his Mar-a-Lago club in Florida that he had once nearly died in a helicopter ride with Mr. Brown.

Mr. Trump also said that Mr. Brown, who dated Vice President Kamala Harris in 1994 and 1995, said “terrible things” about Ms. Harris just before they almost plummeted to their deaths.

“He was not a fan of hers very much, at that point,” Mr. Trump said.

Mr. Brown promptly called the tale a lie — saying he had never ridden in a helicopter with Mr. Trump and had never told him disparaging things about Ms. Harris. In fact, he repeatedly told reporters that he respected her and desperately hoped that she would beat the man with whom he had never ridden in a helicopter.

Mr. Trump repeated his claims on his social media site, Truth Social, and threatened to sue The New York Times for reporting that the helicopter story was made up. “Now Willie Brown doesn’t remember?” Trump wrote.

That’s when Nate Holden, a former Los Angeles city councilman and state senator, said he had taken a rocky helicopter ride with Mr. Trump in 1990