GOP is driving away another group who were strong GOP supporters in the past.
For decades, the backbone of the Republican Party in Florida was the Cuban-American vote. Cuban-Americans supplied not just votes, but candidates for the GOP. But now there is survey evidence that the group is split between the GOP and Democrats. The question is no longer if, but why.
http://www.huffingtonpost.com/john-a-tures/cuban-american-voters_b_5595822.html