Central Florida's Interstate-4 is more than a highway. In the U.S. analysts know it as a political battleground. Republicans dominate in the north and Southwest. 

Democrats control South Florida's big cities Jacksonville and Miami. The middle in communities that line the I-4 is up for grabs. 

I-4 residents are so-called "swing" voters in one of the country's biggest swing states. And a big chunk of them are Puerto Rican. Take a look at how these voters react to the presidential election.

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