Six organizations looking to reform U.S. drug laws urged President Barack Obama to halt raids on medical marijuana providers following the raid on Oaksterdam University in California.

“Our coalition represents the views of tens of millions of Americans who believe the war on medical marijuana patients and providers you are fighting is misguided and counterproductive,” Drug Policy Alliance, Law Enforcement Against Prohibition, Marijuana Policy Project, National Cannabis Industry Association, National Organization for the Reform of Marijuana Laws, and Students for Sensible Drug Policy (SSDP) wrote in a letter to the President.

Oaksterdamn University, which trained people to work in the booming medical marijuana industry, was raided by federal agents on Monday.

Sixteen states and the District of Columbia have legalized the use of medical marijuana. However, the federal Drug Enforcement Administration still classifies marijuana as a schedule I drug: the most restrictive classification reserved for dangerous drugs with no real medical value.