Joe Biden held a press conference in Hanoi, Vietnam, on Sunday evening where he appeared confused and rambling, and eventually told the audience he was going to bed.

Biden, 80, made an awkward joke where he called the 1987 anti-Vietnam War movie Good Morning, Vietnam, a “song.” “One of my staff members said, remember the famous song ‘Good Morning Vietnam’? Well, good evening, Vietnam,” he said to no laughter.

Biden then read remarks from a teleprompter, before saying he would take questions from reporters who were on a list that was given to him.

“They gave me five people here,” Biden said. He first called on a Reuters reporter, and corrected her pronunciation of “sincerity.”

He also used the derogatory term, “the Third World,” before correcting himself to say, “the Global South,” which refers to developing countries.

Biden also went from talking about global warming to a John Wayne movie.

“Did you ever think you’d be sitting at a G-20 conference where everyone was preoccupied with the notion of global warming? Not a joke, did you ever think that?” he said.

He then launched into sharing a scene from a John Wayne movie, where Indians accused Union soldiers of being “lying dog-faced pony soldiers,” and likened them to climate change skeptics.

“Well there’s a lot of lying dog-faced pony soldiers out there about global warming,” he said. “But not anymore. All of a sudden, they’re all realizing it — there’s a problem. And there’s nothing like seeing the light.”