Trump Ridicules Clinton's Stamina at Rally: 'You Think Hillary Would Be Able to Stand up Here for an Hour?'

"You think Hillary would be able to stand up here for an hour?"

"You think this is so easy in this beautiful room that’s 122 degrees," he told supporters at the Canton Memorial Civic Center in Canton, about 60 miles south of Cleveland. "It is hot. And it’s always hot when I perform because the crowds are so big. These rooms were not designed for this kind of a crowd. I don’t know folks, you think Hillary would be able to stand up here for an hour and do this?”

"She's lying in bed getting better and we want her better, we want her back on the trail," Trump said.

As ABC News previously reported, though, Clinton is scheduled to return to the campaign trail on Thursday, with a campaign event in Greensboro, North Carolina.

Trump continued to take aim at his Democratic rival, as well as President Barack Obama, saying, "I watched Obama yesterday. Why isn't he working instead of campaigning for Crooked Hillary? Who's paying for that big plane coming in?"

He added, "Hillary Clinton calls people who aren't supporting her deplorable and irredeemable. I call people who don’t support me American citizens who deserve the same respect as anyone else."

His supporters began chanting "lock her up," to which Trump said, laughing, "Ohhhh, you people in Ohio -- you are so tough."

He said he would "liberate our poorest citizens from crime and poverty and violence ... We need to take care of our inner cities ... and take care of struggling Americans."

Speaking about the his plans to boost employment, Trump said, "My economic policy can be summed up in three words: Jobs, jobs, jobs."

And, not surprisingly, he reiterated his campaign promise to build a wall along the U.S.-Mexico border. "We will build a wall," he said. "We will build a wall and we will stop those drugs from pouring in."

The, to the delight of the audience, he asked, "Who is going to pay for the wall?"

Chanted the audience: "Mexico!"

He also took aim at the water crisis in Flint, Michigan, saying, "Now the care are made in Mexico, and you can't drink the water in Flint."