Unraveling marijuana laws could be a long, tedious process, but some lawmakers have said they’re ready to try. Cannabis legalization or decriminalization (we’ll get to the difference in a bit) is one of several issues set to test Democrats’ slim majority in Congress, along with a $15 minimum wage hike and making Washington, DC, the 51st state. At the federal level, cannabis continues to be prohibited across the board, resulting in a legally dubious gray…