Former U.S. president Donald Trump recounted a story to reporters on Thursday about being involved in a helicopter emergency landing with former San Francisco Mayor Willie Brown.

Asked by a reporter about U.S. Vice President Kamala Harris’ previous relationship with Brown and whether it helped her career trajectory, Trump said he knew Brown “very well” and told a story about the alleged helicopter incident.

“I know Willie Brown very well. In fact, I went down in a helicopter with him. We thought maybe this is the end. We were in a helicopter going to a certain location together, and there was an emergency landing,” Trump told reporters gathered at his Mar-a-Lago resort in Florida for his first news conference since the Democratic ticket was announced.

Brown, however, rejected Trump’s account as “obviously wrong” during a phone call later Thursday with CNN, saying: “I’ve never been in a helicopter with him in my life.”