On Jan. 4, acting against the advice of his own Task Force on Crime Reduction and Public Safety, U.S. Attorney General Jeff Sessions rescinded the Cole Memorandum. This Obama-era memo had allowed states to set their own cannabis rules and regulations, with minimal intervention by the federal government. In rescinding the memo, the Trump administration has flouted the U.S. Constitution’s provision to reserve most powers to the states, a precept that the Libertarian Party holds as fundamental to the federalist structure the country’s founders crafted.