A bipartisan group of lawmakers introduced new legislation that highlights the growing divisions within the Republican Party on the nation’s current patchwork of marijuana laws. The effort to allow states to decide their own marijuana policy potentially pits President Trump, who has voiced support for the state’s right to choose their own policy, against his own staunchly anti-marijuana attorney general. Additionally it highlights the chasm between anti-marijuana GOP leaders in Congress and the growing number of rank-and-file Republicans who are demanding federal protections for their state’s burgeoning marijuana businesses.

After Sens. Gardner and Warren introduced the legislation, advocates called it the “most significant piece of marijuana-related legislation ever.”