I wasn't really going to post on this but since it is making the news, Equal Marriage Arizona (of which I am co-chair) is putting on hold our efforts to amend the Arizona Constitution in 2014 and will defer to 2016.
At some point when this quiets down, I will write an extended article about the experience, which was certainly a learning exercise for me (and by the way did nothing to dissuade me from my general default stance of avoiding politics like the plague).
We honestly thought that an effort initiated and led by Republicans and libertarians was the right choice for a heavily red state like Arizona, and I am still convinced of that. In fact, I think we knocked some of the Conservative opposition on their heels, and several Conservative commentators publicly stated that ours was a dangerously (for them) effective approach. In addition, a number of prominent Republicans took me aside and thanked me -- they felt that getting this passed would help save the party from its worst impulses.
From the beginning, I had some nervousness that our language was not perfect (though the lawyers were happy with it), but it was polling well and even more than a year in advance we were polling over 50% of probable voters in 2014.
The buzz saw we ran into was not from the Conservative opposition but from those we thought of as our allies. Several prominent LGBT and gay marriage groups turned against us early, and pressured nearly every other group on the Left to oppose us, even getting a number of groups who had endorsed us early to withdraw their endorsements.
The reasons for this were myriad, and I may write that story at some future date. Some of the wounds were self-inflicted on our part, and some were frankly due to my failings as a leader in this political arena. But I am convinced that these groups were never, ever going to support us. Some groups honestly worried that 2014 was too early in Arizona. Others had... other concerns. Scott Shackford of Reason makes some pretty good guesses, but there were issues beyond these.