Call it the Cuban Conundrum—a problem for pollsters who find Florida Hispanics are far more Republican than anywhere else in the nation.It’s on full display in the latest Florida International University/Miami Herald/El Nuevo Herald poll of likely Hispanic Florida voters showing President Barack Obama clings to a narrow 51-47 percent lead over Republican Mitt Romney.But nationwide,the poll shows,Obama leads by a far bigger margin among likely Hispanic voters.The difference in Florida: Cuban voters. Without them, the FIU poll shows,Obama would handily win likely Florida Hispanic voters 65-32 percent.Not only are Cubans reliable Republican voters—they’re about 70 percent of Miami-Dade’s registered...