Egomaniac Don drove actor to pot

WOODY HARRELSON had to light up a joint just to make it through a dinner with Donald Trump.

The actor, who portrays former President Lyndon B. Johnson in the upcoming film “LBJ,” recalled to Bill Maher on Friday night his dinner experience with Trump more than 15 years ago.

Harrelson was invited to dine in 2002 by Jesse Ventura, who Trump wanted to run with him on a Democratic ticket in 2004.

“I went and it was brutal. I never met a more narcissistic man. He talked about himself the whole time,” Harrelson explained.

Maher chimed in and jokingly questioned, “So he’s changed a lot?”

“I had to walk out halfway through to smoke a joint just to like steel myself from the rest of it,” the “Natural Born Killers” star continued.

Harrelson quit marijuana about a year ago — an effort Maher didn’t let go.

The “Real Time” host showed viewers side-by-side images of himself with Harrelson, both after smoking marijuana and sober.

Maher joked that it was evident Harrelson had much more fun while on the drug.

“I don’t see one positive thing he’s done,” Harrelson said of Trump in a May interview with The Guardian. “I keep wanting him to surprise me, with just one positive thing.”

“LBJ” is due out in theaters on Nov. 3.