Ohio Gov. John Kasich would not discount a potential another Republican primary challenge against President Trump in 2020 when asked about it Friday.

The topic came up during an interview on HBO's "Real Time," hosted by liberal political comedian Bill Maher.

Though Maher told Kasich that in 2016 Trump "kicked your ass," he asked Kasich to look two years down the road.

"I can see a scenario where he's in a lot of trouble, because he's an idiot," Maher said. "There could be a foreign affair disaster. He doesn't know anything about that. Russia could explode in his face. People could be dying from his healthcare. I could see a challenge in the Republican Party for 2020. Would you be up for that?"

Kasich attempted to stop the cheering from what Maher himself described as a "liberal California audience."

"I'm going to finish my term in 18 months as the governor of our state, pull the state together and get it to do better and better and better," Kasich said. "That's what I'm all about — giving everybody a shot. And then I don't know what I'm going to do."

"What I look for is ... What is it I'm supposed to do in my lifetime to build a better world or build a better community or whatever? So I can't tell you what that's going to be. I'm not going to be plotting and scheming," he added, before noting he's supporting Trump to succeed while in office.

"I'm rooting for [Trump] to do well for the same reason I root for a pilot on my airplane to do well. He's the president," Kasich said.

"But he's not Sully," Maher shot back, in what was likely a reference to retired airline pilot Chesley "Sully" Sullenberger who in 2009 saved the lives of his passengers and crew in a crash landing on the Hudson Bay in what is known as the "Miracle on the Hudson."

Speculation of a Kasich run in 2020 is on the rise, especially with his decision to speak last month in New Hampshire, the first-in-the-nation primary state. In an interview with David Axelrod he said his "inclination" is to say he'll never run for anything again, while adding the disclaimer: "You never want to say never to anything."

Watch the exchange below, beginning at the 9-minute mark.