All nine former administrators of the federal Drug Enforcement Administration—Republicans and Democrats—have filed an extraordinary brief urging the U.S. Supreme Court to take up a challenge by Nebraska and Oklahoma against Colorado’s legalization of marijuana.

“There is no alternative forum that can hear the plaintiff States’ challenge to Colorado’s open violation of federal law,” Gibson, Dunn & Crutcher partner Mark Perry wrote. “No court but this court has jurisdiction to hear this case, it is unlikely that any private party has standing to challenge Colorado’s law, and the Executive Branch has willfully ignored Colorado’s violation of federal law.”

Read the amicus brief below.