A pink-shirted Rep. John Lewis was celebrated with a hero's welcome. Atlanta Mayor Kasim Reed held court from atop a towering float. Two Democratic candidates for governor paraded down Peachtree, as did just about every contender for Atlanta office.

Not too long ago, the Atlanta Pride parade was an at best an afterthought for politicos – at worst something to be shunned. Now, as the city's gay community flexes its electoral and financial muscle, it's become a must-attend for serious Democratic contenders for office.

Keep reading: A show of political force at Atlanta's gay pride festival