With opposition to the centers mounting, many Democrats and a growing number of Republicans are campaigning against them.

© Aubrey Trinnaman for The New York Times

Byron Donalds, a three-term congressman who won the state’s Republican primary on Tuesday, endorsed President Trump over his own governor, Ron DeSantis. The payoff has been huge.

© Martina Tuaty for The New York Times

State Representative Angie Nixon, a progressive firebrand, marshaled grass-roots enthusiasm to defeat a moderate who dramatically out-raised her. Can it carry her to victory in November?

© Saul Martinez for The New York Times

Jim Schwartzel defeated a large field of competitors for a House seat based in Fort Myers, including several candidates who had recently established Florida residency.