Donald Trump suggested that he and Democratic rival Hillary Clinton should undergo a drug test before their third and final debate on Oct. 19.

“Athletes ― they make them take a drug test, right? I think we should take a drug test prior to the debate,” Trump told the crowd at a campaign rally in Portsmouth, New Hampshire, on Saturday.

Trump went on to insinuate that Clinton might be using performance-enhancing drugs to improve her debate skills.

“I don’t know what’s going on with her, but at the beginning of her last debate, she was all pumped up at the beginning,” Trump said.

“And at the end, it was like, ‘Huh, take me down,’” he said, mimicking an exhausted exhale. “She could barely reach her car.”

Trump appears to be following the lead of his high-dollar supporters with the mocking proposal. Make America Number 1, a pro-Trump super PAC bankrolled by hedge fund billionaire Robert Mercer, released a 25-second video ad calling for drug testing more than a week ago.

Trump has tried to cast aspersions on Clinton’s physical fitness and health, claiming she lacks the “stamina” to serve as president. At the same time, when Trump was asked to name something he liked about her in Sunday night’s debate, it was her perseverance he praised.

HUFFPOST READERS: What’s happening in your state or district? The Huffington Post wants to know about all the campaign ads, mailers, robocalls, candidate appearances and other interesting campaign news happening by you. Email any tips, videos, audio files or photos to