Will 2018 be the year marijuana takes over?

So far, all the states that have legalized marijuana have done so through grassroots petitions and ballot initiatives meant to bypass risk-averse lawmakers in state houses.

California, Nevada, Maine, Massachusetts, Alaska, Oregon, and the District of Columbia have all followed Colorado and Washington either to legalize the sale and use of recreational marijuana or, at a minimum, to decriminalize possession and consumption of small amounts of the drug.