It's not even December of 2012, but Marco Rubio is already in Iowa: And so it begins again. Thirty-eight months before the next presidential vote is cast, Marco Rubio on Saturday night became the first of the potential 2016 contestants to swoop in to this first caucus state and test the GOP’s new rallying cry to broaden its appeal. Seven hundred people turned out to see the Florida senator at the annual birthday fundraiser bash for GOP Gov.