Voter turnout explodes among blacks, Hispanics

Turnout among African American and Hispanic voters in the United States is surging, and this swell of minority participation could spell trouble for Donald Trump's White House hopes.

On Sunday -- the last day of early voting before Election Day today-- hundreds of people attended "Souls to the Polls" events, aimed at encouraging churchgoers to vote across the key swing state of Florida.

Some came straight from morning worship, wearing three-piece suits and dresses as they made their way past dozens of campaigners hoisting signs for local candidates and urging support for solar energy and education issues.

At one event in central Miami, people held hands and prayed outside an early voting site, while at another in southern Miami-Dade County, about 20 African American men rolled in together on motorcycles.

For some, the vote they cast was as much for Democrat Hillary Clinton as it was against her Republican billionaire challenger.

As of Sunday, 565,000 Hispanics have voted in person in Florida, a 100 percent increase over the close of early voting in 2012, according to Daniel Smith, a University of Florida professor who tracks voter turnout.

Hispanics make up a powerful voting bloc in the battleground state of Florida, and are widely expected to lean toward Clinton.