Florida Passed DeSantis's Map. Democrats Are Calling It a Dummymander.

The legislature approved a 24-4 congressional map in under 72 hours, targeting four Democratic incumbents. But analysts — including some Republicans — warn the aggressive gerrymander could backfire spectacularly.

It took the Florida Legislature less than three days to see, debate, and pass the most aggressive congressional gerrymander in the state's modern history. Governor Ron DeSantis released his proposed map on Monday. The House voted 83-28 on Wednesday morning. The Senate followed 21-17 that afternoon. The bill now heads to DeSantis's desk for a signature that is not in doubt.

The map would transform Florida's congressional delegation from 20 Republicans and 8 Democrats to a projected 24 Republicans and 4 Democrats — a net swing of four seats in a single stroke. Florida is now the eighth state to complete mid-decade redistricting in the 2026 cycle, and the move tips the national redistricting scoreboard back in the GOP's favor after Democratic gains in Virginia and California had brought it roughly even.

The Four Seats in the Crosshairs

DeSantis's map targets four specific Democratic incumbents, each representing communities that would be carved up and dispersed into Republican-leaning districts:

The Dummymander Theory

A dummymander is a gerrymander that backfires — when the party drawing the maps gets so greedy that it spreads its voters too thin, creating nominally favorable districts that collapse in a wave election. And several analysts, including Republicans, think DeSantis may have built exactly that.

University of Florida redistricting expert Michael McDonald assessed the map as "probably a plus-two or plus-three" for Republicans in a neutral environment — not the plus-four it's designed to deliver. And in a wave? It "could backfire gloriously if it's just a bloodbath everywhere," McDonald told NBC.

Republican strategist Karl Rove echoed the concern on Fox News, saying the redistricting could actually cause Republicans to "lose a seat or two." Republican Manatee County Commissioner George Kruse publicly urged lawmakers to vote no, writing: "Stand up for the People; not the Party."

House Democratic Leader Hakeem Jeffries leaned into the narrative, telling reporters he believed Democrats could pick up "between three and five additional seats" if November turnout mirrors 2018 or 2020 levels. Democrats have outperformed in every special election since January 2025, and the generic ballot currently shows Democrats with a 10-point advantage.

The case for the dummymander: by eliminating Castor's safe Tampa seat and spreading those Democratic voters across three new districts, DeSantis made two or three previously safe Republican seats suddenly competitive. If Democrats overperform by even a few points — which the political environment currently favors — the map could produce a net gain for Democrats compared to the old lines.

The SCOTUS Accelerant

The timing was not coincidental. The Florida Legislature was debating DeSantis's map on the same morning the Supreme Court handed down its decision in Louisiana v. Callais, weakening Section 2 of the Voting Rights Act. DeSantis had been waiting for exactly this ruling.

Florida's Fair Districts Amendment, passed by voters in 2010, explicitly bans partisan gerrymandering and requires the consideration of race when drawing districts to protect minority voting power. DeSantis has argued for months that the Fair Districts provisions are unconstitutional — and after Callais, he feels vindicated.

His general counsel wrote to lawmakers that the Fair Districts Amendment's protections "no longer applied" after the state Supreme Court struck down the race-related provision last year, and that Callais confirmed the constitutional landscape had shifted. The state House sponsor, Rep. Jenna Persons-Mulicka, told colleagues the map "does not align with Florida's constitution" but was based on "viable legal theory" in an "evolving legal landscape."

Translation: we know this is probably illegal under current state law, but we think the courts will eventually agree with us.

The National Scoreboard

Florida's map is the final major piece of the mid-decade redistricting war that Donald Trump ignited in 2025 when he urged Texas Republicans to redraw their maps. Eight states have now completed redistricting. Here's where things stand:

Before Florida, the redistricting battle was roughly a wash. Virginia's voter-approved maps (currently blocked in court) would give Democrats up to four new seats. California's Proposition 50 overrode the independent commission to net Democrats five seats. But Texas had already given Republicans five, and North Carolina, Missouri, Ohio, and Utah added several more. Florida's four GOP-leaning seats push the balance firmly into Republican territory — though Virginia's maps, if ultimately upheld, could narrow the gap again.

As NPR summarized it: Republican-led states now hold redistricting advantages worth roughly 13 seats, while Democratic-led states hold about 10. The difference may determine control of the House.

What Comes Next

DeSantis is expected to sign the map within days. Florida Democratic Party Chair Nikki Fried has promised immediate legal action. The challenge will likely end up before the Florida Supreme Court — where six of seven justices are DeSantis appointees. The court already struck down one Fair Districts provision last year, emboldening this push.

Candidates face a June 12 deadline to file for Florida's August primary. That means four Democratic incumbents — Soto, Castor, Moskowitz, and Wasserman Schultz — have roughly six weeks to decide whether to run in dramatically redrawn districts, challenge each other, or step aside. Some may end up in the same district, forced into a Democratic primary against a colleague.

The deeper question is whether DeSantis built a fortress or a house of cards. In a neutral environment, the map delivers four Republican seats. In the current environment — with Trump at record-low approval, gas at $4.23 a gallon, an ongoing war in Iran, and Democrats riding a 10-point generic ballot lead — the map may have created four toss-ups where Republicans previously had safe seats. November will answer the question. Either way, Florida just became the most important state on the 2026 House map.