For states, legal marijuana has meant hundreds of millions of dollars in new tax revenue and millions more in cost savings that come from keeping low-level nonviolent offenders out of jail.

But Trump’s pick to take over the Justice Department, Sen. Jeff Sessions(R-Ala.), has taken a much harder line on marijuana, leading some to worry that he would overturn the guidance to U.S. attorneys — laid out in a document known as the Cole memo, after its author, Deputy Attorney General James Cole — and crack down on states.

“The current federal policy, as outlined by the Cole memo, has respected carefully designed state regulatory programs while maintaining the Justice Department’s commitment to pursuing criminals and prosecuting bad actors,” said Aaron Smith, executive director of the National Cannabis Industry Association.

Read more: http://thehill.com/homenews/state-watch/314986-states-hope-trump-era-will-reset-federal-relationship