Americans are growing more hip to legalizing marijuana. In fact, a House bill to do just that is one of the most viewed proposals on Congress’s official legislative tracking site.

But the overwhelming feeling on Capitol Hill is to leave the issue to the states. Both Democrats open to the pot experiment and libertarian-leaning Republicans are flying the states’ rights banner as Colorado and Washington state implement their groundbreaking new marijuana legalization laws.

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On the lobbying and advocacy side of the equation, medical marijuana industries in 20 states and the District of Columbia have created a growing semi-legitimate industry — represented by the National Cannabis Industry Association. The trade group has nearly quadrupled in size in the past year, to about 400 members, and now has five full-time employees.

Read more: States take the lead on pot | Politico