Marco Rubio resigned from the Senate in January 2025 to become Secretary of State under President Trump, vacating a Florida Senate seat he had held since 2011. Governor Ron DeSantis appointed a replacement to serve until the 2026 special election, but the dynamics of a special election in Florida — where turnout patterns are different from general elections, and where the national environment will be heavily in play — make this race far more interesting than Florida’s current partisan lean would suggest.
Florida spent most of the 1990s and 2000s as the quintessential purple state — the site of the 2000 recount, competitive in presidential races through 2016. Then something changed. The state moved decisively right under DeSantis’s influence, Trump carried it by 3 points in 2020 and larger in 2024, and the Democratic Party’s infrastructure in the state has suffered from years of organizational neglect and high-profile defeats.
The Special Election Dynamics
Special elections are notoriously difficult to predict. Turnout is lower, enthusiasm gaps are magnified, and candidates who might otherwise be long shots benefit from the compressed timeline. Democrats have won special elections in states far redder than Florida in recent cycles. If the national environment remains hostile to Republicans — driven by economic concerns or opposition to specific policies — Florida could produce a surprise.
The special election also creates a timing and primary challenge that regular elections don’t. Both parties will hold open primaries, and Florida’s voting population skews significantly older and more conservative than its registration numbers suggest, which generally benefits Republicans in low-turnout environments.
The Republican Field
Florida has no shortage of Republican politicians who might see a Senate seat as the next step: members of Congress, current and former state officials, and DeSantis-aligned figures who have been building profiles for years. The Republican primary could be crowded and expensive, with any nominee emerging somewhat bloodied.
The Democratic Case
Democrats need to run up the score in Miami-Dade, Broward, and Palm Beach counties while being competitive enough in the I-4 corridor and in Florida’s transplant-heavy suburbs. A candidate with strong appeal to Puerto Rican communities in Central Florida — a growing and electorally significant population — could shift the math meaningfully. The party’s challenge is organizational: Florida’s Democratic infrastructure has atrophied, and rebuilding it for a single special election cycle is genuinely difficult.
What to Watch
Who wins the Republican nomination matters enormously. A candidate too associated with the DeSantis wing’s culture-war priorities could struggle in the kind of moderate-skewing special election environment that produces surprises. Democrats will need to recruit a top-tier candidate quickly — and convince national donors that Florida isn’t a money pit before the general election fundraising begins.