Uncertainty on the I-4: Puerto Rican voters eye hard choice

The 56-year-old construction worker is among many Puerto Ricans living in this working-class neighborhood just south of Orlando along central Florida's Interstate-4 corridor — perhaps the most valuable political real estate in the nation.

Unlike other immigrant groups, they arrive as American citizens and become eligible to vote almost immediately in the nation's premiere battleground state.

Since June 28, Clinton's team and an allied super PAC spent a combined $23 million on advertising in the Orlando and Tampa areas, according to Kantar Media's political ad tracker.

Asked about staffing, the nominee's team contradicted numbers released last week by the Republican National Committee, which claimed a paid staff of 200 on the ground in Florida.

Yet the Republican nominee remains heavily dependent on the Republican National Committee to do the grunt work — door knocking and phone calls — that has fueled past winning campaigns.

The teams included a handful of Spanish speakers who talked up Trump and collected information about their voting preferences in the voters' native language.

Democratic congressional candidate, state Sen. Darren Soto, said Trump has "stoked racism" throughout his campaign in a way that should push Puerto Rican voters toward Clinton.