Nine states voted on ballot measures to roll back marijuana prohibition on November 8, 2016. The Marijuana Policy Project supported initiative campaigns to regulate and tax marijuana like alcohol in Arizona, Maine, Massachusetts, and Nevada and was part of a coalition of groups that coordinated a ballot initiative campaign in California. MPP also provided assistance to initiative campaigns to legalize medical marijuana in Arkansas, Florida, and North Dakota. Montana voted on a measure to improve its existing medical marijuana law. All ballot measures were passed by voters except Arizona's Proposition 205. Alaska In November 2014, the Campaign to Regulate Marijuana Like Alcohol in Alaska, a ballot initiative campaign backed by MPP, successfully passed Ballot Measure 2, making Alaska the fourth state to end marijuana prohibition and replace it with a system in which marijuana is taxed and regulated like alcohol. In 2004, MPP provided the majority of funding for an initiative to regulate marijuana in Alaska, which failed with 44% of the vote (but still set what was at the time the record for the largest vote to end marijuana prohibition in any state). Arkansas In November 2012, MPP backed Issue 5, a medical marijuana initiative in Arkansas, which narrowly failed, receiving 48.5% of the vote. Arizona In November 2016, Proposition 205 — a ballot initiative campaign backed by MPP — did not successfully pass a ballot initiative to legalize, tax, and regulate marijuana for adult use. In November 2010, the Arizona Medical Marijuana Policy Project, a ballot initiative campaign backed by MPP, successfully passed a ballot initiative making the use and possession of medical marijuana legal and establishing approximately 120 non-profit dispensaries around the state. This made Arizona the 15th state to adopt a medical marijuana law. In September 2013, the Marijuana Policy Project initiated a campaign to legalize marijuana in Arizona for recreational use. California In November 2016, Proposition 64 — a legalization initiative supported by MPP — successfully passed a ballot initiative to legalize, tax, and regulate marijuana for adult use. Colorado In November 2012, the Campaign to Regulate Marijuana Like Alcohol, a ballot initiative campaign backed by MPP, successfully passed Amendment 64, making legal in Colorado the possession, use, production, distribution, and personal cultivation of marijuana. MPP also played a lead role in drafting and campaigning for the historic initiative. District of Columbia In November 2009, MPP successfully lobbied for the removal of the so-called "Barr