'Who are we?' Big donors battle for Democrats' future in Florida

Candidate Andrew Gillum watches a video, which shows his rise from the son of a bus driver, to the mayor of Florida's capital city, who is seeking the Democratic nomination for state governor, during a campaign visit to a barbershop in Sarasota, Florida, U.S., July 18, 2018. REUTERS/Letitia Stein

SARASOTA, Fla. (Reuters) - Andrew Gillum, the son of a bus driver who became the mayor of Florida's capital, is struggling to gain traction with voters in his bid to become the state's first black governor.

Yet key Democratic megadonors and liberal leaders have backed the 39-year-old Gillum over a crowded field of viable candidates, convinced his voice represents the party's future in America's largest swing state in presidential elections.