San Antonio Mayor Ricardo Castro will give the keynote address . Possible 2016 contenders , many of them governors , will be on display . Former Florida Gov . Charlie Crist has his shot at the GOP . Anticipation is high for former President Bill Clinton 's opening night address .
San Antonio Mayor Julian Castro will give the keynote address . Possible 2016 contenders , many of them governors , will be on display . Former Florida Gov . Charlie Crist takes his shot at the GOP . Anticipation is high for former President Bill Clinton 's Wednesday night address .