With little action on the federal level, the fight for loosening marijuana restrictions has largely been carried out among the states. Until now. With the majority of states allowing some use of the drug, questions on enforcement, research and finance are now getting the full attention of Congress.

The issue, once pressed largely by Democrats, is now supported by members of both parties — many of whom take their cues from ballot measures in their home states. In 2014, 49 House Republicans joined 170 Democrats to block funding for enforcing marijuana laws in states that had legalized it. This Congress is considering 27 measures that focus on marijuana, up from just a handful in years past. While the general consensus has been that legalization will happen at some point, the trend indicates that it could be sooner rather than later.