During a campaign event in Grand Rapids, Michigan, Trump referred to Clinton's performance in the 2008 election.
"Even a race to Obama, she was gonna beat Obama. I don't know who would be worse, I don't know, how could it be worse?" he told the crowd. "She was favored to win and she got [expletive], she lost, I mean she lost," he told the crowd.
"But I watched her the other night, it was hard, it was really hard because there were a lot of other things on better, including reading books and reading financial papers which I actually enjoy reading.”
"I know where she went, it's disgusting, I don't want to talk about it. No, it's too disgusting. Don't say it, it's disgusting, let's not talk, we want to be very, very straight up. But I thought that, wasn't that a weird deal,” Trump said.
And he said that while "I hate some of these people," referring to reporters, "I would never kill them," he said.
Clinton's campaign did not immediately comment and Trump's campaign did not immediately clarify his remarks.