My observation that the Libertarians won the 2012 election may seem counterintuitive, given that Gary Johnson performed only slightly better than most past Libertarian Party nominees, but nonetheless it is true. Libertarians won stunning victories on several important ballot initiatives.
Marijuana was legalized in two states, Washington and Colorado. It's hard to say whether that's more amazing than the fact that same sex marriage was legalized in three states. (A ban on gay marriage that would have been placed in a state's constitution lost in a fourth state.)
Libertarians didn't win every ballot initiative, but won more than their share; Reason's Hit and Run blog is keeping a running account.
I got interested in the Libertarian movement in the 1970s, not coincidentally perhaps about the time I was reading Illuminatus! for the first time. Libertarians have long supported gay rights and opposed the "war on some drugs." I am here to tell you those were not mainstream positions in the 1970s.