Attorney General Jeff Sessions is rescinding the Obama-era policy that had paved the way for legalized marijuana in states across the country.

Attorney General Jeff Sessions has made it abundantly clear that he’s no fan of marijuana and now it seems he’s planning to unleash the full power of federal law enforcement on states that have legalized weed.

According to a report Thursday from the Associated Press, which cites two unnamed sources from the Department of Justice, Sessions is going to rescind an Obama-era policy that guides federal prosecutors on when to target marijuana growers, sellers, and other businesspeople in Colorado, Washington, Oregon, California, and other states where the drug is now legal.

The move doesn’t appear to be a direct crackdown, but it will reportedly allow U.S. Attorneys to prosecute marijuana cases at their own discretion. Previously, federal prosecutors were instructed to only pursue cases where marijuana was being shipped illegally across state lines, sold to children, or other flagrant violations of state and federal law.