Stephen Colbert on Thursday night ripped Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsTrump reignites court fight with Ninth Circuit pick Democrats press Nadler to hold Lewandowski in contempt Pelosi: Lewandowski should have been held in contempt 'right then and there' MORE for undoing an Obama-era directive to not prioritize the prosecution of marijuana-related offenses.

“Come on Jeff, you’re the states' rights guy,” Colbert said. “Would it help you if they smoked the weed out of a rolled-up Confederate flag?”

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“This new directive from Sessions can mean only one thing,” Colbert continued. “He still doesn’t know that white people smoke pot too.”

The late-night host then compared Session’s stance on heroin to that of Sen. Bernie SandersBernie SandersOmar: Biden not the candidate to 'tackle a lot of the systematic challenges that we have' Seven takeaways from a busy Democratic presidential campaign weekend in Iowa Democrats go all out to court young voters for 2020 MORE (I-Vt.) who slammed Session’s move by saying that “marijuana is not the same as heroin.”

“Sessions knows that marijuana isn’t heroin because he’s on record as saying that marijuana is only slightly less awful than heroin,” Colbert said.

“It’s true, they’re very close. You take heroin, you die. You smoke marijuana, you die laughing at Jeff Sessions.”

The Justice Department announced Thursday that it would reverse the Obama-era policy, which helped laws allowing for the use of recreational marijuana in states to prosper.

The U.S. attorney for Colorado — where the use and possession of marijuana was legalized in 2012 — said the state wouldn't change how it prosecutes marijuana-related offenses.