President Barack Obama's evolution on gay marriage unfolded at a Darwinian pace, like that of the giant tortoise. For more than a year — eons in politics — he danced up to the edge

President Barack Obama's announcement Wednesday that he supports gay marriage boosted the hopes of gay rights groups around the world that other leaders will follow his example, though opponents

's announcement that he supports gay marriage sent ripples through the political world on Wednesday. What does this mean for the 2012 election against likely Republican nominee Mitt Romney? How has