Charlie Crist, the former Republican governor of Florida who is now a frontrunner for the "Democratic" nomination for governor, has come out... in support of same-sex marriage. "I most certainly support marriage equality in Florida and look forward to the day it happens here," Christ wrote on his Facebook page.
Why does this matter? Because Crist is a notoriously calculating politician who is willing to do and say whatever it takes to win election. Back in 2006, when running for the Republican gubernatorial nomination, Crist opposed marriage equality and touted his support for "traditional" marriage. But Crist has now apparently determined that supporting gay marriage is what he needs to do to win the Democratic nomination in 2014.
So this is less about Crist's evolution on the issue, and more about the evolution of the Florida electorate. And if gay marriage is becoming a winning issue in Florida, that's a pretty big deal.