Donald Trump Questions Hillary Clinton's Mental State: 'I Don't Think She's All There' "Honestly I don't think she’s all there," the GOP presidential candidate said.

WINDHAM, New Hampshire -- Donald Trump stayed largely on message at a campaign event in New Hampshire tonight, giving wary Republicans cause for relief, as he launched into an all-out assault on Hillary Clinton that she is mentally unfit to be president.

"She short circuited, she used the term 'short-circuited.' She took a little short circuit in the brain," Trump said. "And she's got problems, I mean, if we had real people, this would be a real problem for her, but I think that the people of this country don't want somebody that's going to short circuit up here."

Trump's usage of the phrase "short-circuit" was a reference to Clinton's own remarks during a press conference as she tried to explain why she falsely said during an interview that FBI Director James Comey said that her statements about her private servers were "truthful."

The businessman continued to assert that perhaps his Democratic rival was losing her mind.

"Honestly I don't think she’s all there," he said, adding that she was "totally unhinged," using a word that former Republican rival Jeb Bush once used about him.

He delivered his remarks in a sweltering high school gym. One young woman was escorted out, but Trump was undeterred.

"It’s hot in here folks. But that's OK. I consider this like a sweat suit," he said. "Everybody tonight, we’ll lose on average 6.2 pounds, OK? Six-- I don’t mind. You know, it's so hot in here, this room was not designed for this many people. It's so hot in here that I consider this to be like a workout, right."