Libertarian Party presidential nominee Gary JohnsonGary JohnsonGary Johnson: I don’t want to be president anymore ‘because of Trump’ Gary Johnson ruling out 2020 bid: 'It does boil down to two political parties' Court: Excluding outside parties from presidential debates does not violate First Amendment MORE opened up Monday about his past marijuana use, but said he would not use the drug during his campaign or if he’s elected president.

Speaking in a half-hour long interview with The Hill in a Facebook Live event, Johnson acknowledged using marijuana recreationally “as recently as a month ago.”

But he said he’s pledged not to use it going forward during his campaign or if he’s elected president.

“The notion of getting that call at midnight or two o’clock — people need to know there’s a firm voice on the other side,” he said.

Johnson, who left a position as an executive at a marijuana company to run for president, said he has not touched alcohol in nearly 30 years.

He argued that legalizing marijuana would lead to less substance abuse overall because people would find it to be a “safer alternative than everything else out there, starting with alcohol.”

“Marijuana products on the medicinal side directly compete with legal painkillers and anti-depressants that statistically kill 100,000 people a year,” Johnsons said. “Marijuana products — not one documented death.”

Johnson said he does not advocate for legalizing other recreational drugs.