A group of U.S. senators is trying to ramp up pressure on the Biden administration to remove marijuana from the federal Controlled Substances Act, citing previous promises of reform. On Wednesday, six lawmakers, including Senators Cory Booker of New Jersey, Bernie Sanders of Vermont and Elizabeth Warren of Massachusetts, sent a letter to the Biden administration demanding that the executive branch use its power to legalize marijuana. The letter also asks the administration to pardon "all persons convicted of non-violent marijuana-related offenses. Their call comes at a time when federal marijuana reform efforts are stalled in the U.S. Senate, where 60 votes are needed to pass a majority of bills. Ahead of the 2020 election, the Biden-Sanders Joint Task Force recommended rearranging marijuana on a federal basis, legalizing medical marijuana nationwide and allowing states to decide on recreational marijuana. This week's letter reiterates that two-thirds of Americans support legalizing marijuana. The letter concludes that "the administration's failure to coordinate a timely review of its marijuana policies is hurting thousands of Americans, slowing research and denying Americans the ability to use marijuana for medical or other purposes."