Colorado Dems Endorse Ballot Measure To Legalize Pot | A Colorado ballot measure to legalize marijuana and regulate it like alcohol will likely be one of the more closely watched referenda in the country, thanks to its real chance of becoming law. Adding to its momentum, Colorado Democrats officially endorsed Amendment 64 at the party’s convention in Pueblo this weekend. A majority at the Denver County Republican Assembly recently voted to support the measure as well. It wasn’t enough to make it part of the country GOP’s platform, but it gives the measure some bipartisan support. Fifteen counties in the state already have similar laws.