In 2012, Colorado and Washington state became the first states to vote to legalize marijuana for recreational purposes. Since then, seven more states and Washington, DC, have followed — although Vermont and DC, while allowing marijuana possession and growing, have continued to bar sales for recreational purposes.
The spread of marijuana legalization has led to a reimagining of US drug policy and how, exactly, it should change as people seek alternatives to punitive criminal justice policies that have led to more incarceration and a black market that supports violent criminal enterprises.
But marijuana remains illegal under federal law. And although the Obama administration said it would allow state-level rules to stand without much federal interference, the Trump administration has taken a tougher line.