Former US president Donald Trump says he is “looking at” the possibility of a second presidential debate against his Democrat rival Kamala Harris.

Trump made the comments to reporters after meeting with firefighters in Shanksville, Pennsylvania.

He remarked, “When you win, you don’t necessarily have to do it a second time,” but added they had a great debate.

Trump mentioned he was “looking at” the possibility of another debate with Harris, potentially on NBC and Fox.

“I would do NBC, I’d do FOX too. I’d do Fox too, but right now we have to determine whether or not we even want to do it,” he said.

Trump’s visit coincided with the 23rd anniversary of the September 11 attacks, where he honoured the victims at the Flight 93 Memorial in Shanksville.