Thousands of people turned out over the weekend for Seattle's two-day marijuana festival known as Hempfest.

Each year, organizers use clothing and speeches to promote their efforts to get pot legalized, and more families and "mainstream" supporters joined them this time. And this year, organizers have more reason to believe there will soon be a change in marijuana policy.

Supporters, like Hempfest organizer Mason Tvert, have long argued that those under the influence of marijuana are in a much different state than those who use alcohol. "There's no reason why we shouldn't be treating it like alcohol and generating revenue and saving in the criminal justice system."