Representative Donalds, the Republican nominee for governor of Florida, made a name as a Black conservative in Congress, but his loyalty to President Trump has been his ticket.

© Martina Tuaty for The New York Times

A former Republican, he plans to run on an affordability agenda.

© John Raoux/Associated Press

Mr. Donalds, a conservative congressman with the backing of President Trump, seeks to become the state’s first Black governor.

© Martina Tuaty for The New York Times

The former Republican congressman will try to appeal to voters disaffected with President Trump in a state where Republicans significantly outnumber Democrats.

© John Raoux/Associated Press