Update After Byron Donalds Wins FL Gubernatorial GOP Primary

Republican Byron Donalds and Democrat David Jolly have secured their parties’ nominations for Florida governor, setting up a November contest between a Trump-backed conservative and a former Republican whose opposition to the president helped drive him out of the GOP.

Both candidates won decisive primary victories and will face each other Nov. 3 in the race to succeed term-limited Gov. Ron DeSantis.

Vice President JD Vance made the Republican case Thursday in Lakeland, telling supporters that Florida “is facing one of the easiest choices I have ever seen in politics in my entire life.”

Vance mocked Jolly and Democratic Senate candidate Angie Nixon while rallying voters behind the Republican ticket. Most attendees interviewed by the Times/Herald said they planned to support Republicans throughout the ballot.

Betty Lou Mazuca, a longtime Donalds supporter, dismissed the possibility that Jolly’s Republican past would help him draw significant support away from the GOP nominee. There is “not a chance” of that happening, she said.

Jolly is offering a much more optimistic assessment of his prospects.

“If the election were tonight, we would win the general election in Florida as a Democratic candidate,” he told CNN shortly before Tuesday’s primary results were called.

He acknowledged that winning would be difficult but argued that voters’ desire for change could overcome Florida’s recent Republican momentum.

“The cycle is presenting an opportunity where voters are just screaming for change,” Jolly said.

That argument will face a substantial test in a state where Democrats have repeatedly lost ground.

The party has not won a Florida gubernatorial election in more than a quarter-century. DeSantis secured reelection by nearly 20 percentage points in 2022, and President Donald Trump carried the state by approximately 13 points in 2024.

Republicans also hold a sizable voter-registration advantage, providing Donalds with a favorable starting position as he seeks to keep the governor’s mansion in GOP hands.

The candidates’ political backgrounds offer sharply different narratives.

Donalds enters the general election with Trump’s endorsement and an established national profile. His campaign will seek to build on the Republican coalition that has transformed Florida from a closely divided battleground into a state that has delivered commanding GOP victories.

Jolly represented Florida in Congress as a Republican from 2014 to 2017. He subsequently left the party, became an independent and ultimately joined the Democrats.

His opposition to Trump dates to the president’s first campaign in 2015 and played a significant role in his departure from the GOP.

Jolly now must persuade voters that his political evolution makes him a credible alternative to continued Republican leadership. Donalds, by contrast, can campaign from within the party that has dominated Florida’s recent statewide elections.

Public polling suggests the race may be closer than the margins posted by Trump and DeSantis, although the surveys cited all show Donalds ahead.

A University of North Florida poll conducted in July placed Donalds at 46% and Jolly at 41%. Another 6% were undecided, while 5% supported another candidate.

Among voters unaffiliated with either major party, the same survey found an almost even contest: Donalds received 39% and Jolly 38%.

That result points to a potential opening for Jolly if he can expand his appeal among independents. It also shows that, in that survey, he had not established an advantage with the voters most likely to determine whether the race becomes substantially tighter.

Other polls have shown Donalds with a somewhat larger cushion.

A Targoz Market Research survey conducted for the James Madison Institute gave the Republican a 45%–38% lead. Seventeen percent of respondents were undecided or selected another option.

A Stetson University Center for Public Opinion Research poll likewise found a seven-point Donalds advantage, 47% to 40%.

Before the primary, political science professor Craig Agranoff told Newsweek that Florida’s electoral fundamentals favored Republicans, while cautioning that those advantages did not guarantee the outcome.

“Right now the fundamentals favor Republicans holding the seat, but a closer race than expected is possible if independents swing hard or if economic concerns dominate,” Agranoff said.

“It is not locked up yet, but the baseline favors the GOP,” he added.

Prediction markets have expressed greater confidence in a Republican victory than the polling margins alone might suggest. Both Kalshi and Polymarket placed the GOP’s chances above 80%.

Those market estimates represent expectations about the eventual winner, rather than measurements of voter support. They nevertheless reinforce the broader view that Donalds begins the general election as the favorite.

The Cook Political Report has also rated the contest Solid Republican.

For Jolly, the challenge is turning his argument for change into a coalition capable of overcoming Republican registration strength, recent election results and Donalds’ support from the president.

For Donalds, the task is to retain the voters who powered Florida’s rightward shift while preventing Democrats from converting economic concerns or a favorable national midterm environment into a statewide upset.

Vance’s Lakeland appearance made clear that the administration intends to support that effort. With the nominees now selected, Florida voters will decide whether to extend Republican control or give Democrats a breakthrough they have pursued unsuccessfully since the 1990s.