Libertarian presidential candidate Gary Johnson Gary Earl JohnsonWhat the numbers say about Trump's chances at reelection Presidential race tightens in Minnesota as Trump plows resources into state The Hill's Campaign Report: Biden condemns violence, blames Trump for fomenting it l Bitter Mass. primaries reach the end l Super PAC spending set to explode MORE revealed on Thursday that he is abstaining from using marijuana while he runs for the White House.

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During an interview with USA Today, Johnson was asked how long it’s been since he's taken the drug.

"It's been about seven weeks," he responded, adding that he would not partake in the drug during his term if he’s elected. "I want to be completely on top of my game, all cylinders."

Johnson has long advocated for legalizing the drug, saying on Thursday that there is "an unbelievable disconnect" between politicians and the public on the issue.

"I haven't had a drink of alcohol in 29 years because of rock climbing and the notion of being the best that you can be, and in that same vein I've stopped using marijuana of any kind," he said earlier in the interview.