Florida’s 21st District 2026

Name: 2026 U.S. House election, Florida’s 21st District
Start: 2026-11-03
End: 2026-11-03
Location: Florida’s 21st District

Brian Mast (R) · Cook PVI R+7 · last result 61.8% R

Safe RShare card

Brian Mast

93¢

Polymarket price

Wikipedia bio

Brian Jeffrey Mast is an American politician and veteran serving as the U.S. representative for Florida's 21st congressional district since 2017. The district, numbered as the 18th district before the 2020 redistricting cycle, includes the Treasure Coast and northern portions of Palm Beach County.

Source: Brian Mast

Polymarket · Brian Mast (R) · 93¢. The contract price, not a forecast model.

Desk notes

Generated from the sourced figures on this page. Not a separate report.

Brian Mast (R) is the incumbent. The ratings consensus is Safe R. Cook’s cell is dated Oct. 16, 2026. 10 forecaster cells are stored. Polymarket Brian Mast 93¢ (mid). The 2024 presidential margin in this state was R+13.1. The 2020 presidential margin in this state was R+3.4.

House polling is not ingested in v1. This page is the ratings row only.

Polling average

No polling average for this race. That is an empty state, not a tie.

Ratings

Cook Political ReportOct. 16, 2026Solid R
Sabato's Crystal BallOct. 8, 2026Safe R
Inside ElectionsOct. 15, 2026Solid R
Decision Desk HQOct. 17, 2026Likely R
RealClearPoliticsOct. 17, 2026Solid R
Silver BulletinSep. 10, 2026Solid R
FiftyPlusOneOct. 17, 2026Safe R
The EconomistOct. 19, 2026Likely R
Fox NewsOct. 13, 2026Solid R
Split TicketOct. 17, 2026Safe R

Quoted from the Wikipedia predictions table, not scraped from the raters.

Markets

Raw yes-prices. Not vig-adjusted. Contracts under 1¢ are omitted.

PolymarketPolymarketOct 20, 10:15 AM EDT

Brian Mast (R)93¢mid · spread 1¢
James Martin (D)8¢mid · spread 0¢

PredictIt is off. Its terms limit the feed to non-commercial use.

Price history

through Oct 20, 9:44 AM EDT

WindowSep 20, 10:00 AM EDT

PolymarketBrian Mast 93¢ at Oct 20, 9:44 AM EDT· Polymarket CLOB prices-history · 693 hours

PolymarketJames Martin 8¢ at Oct 20, 9:44 AM EDT· hourly pull · 21 hours

Marker Oct 15, 8:00 PM EDT · Rating dated Oct. 16, 2026

Marker Oct 14, 8:00 PM EDT · Rating dated Oct. 15, 2026

Marker Oct 7, 8:00 PM EDT · Rating dated Oct. 8, 2026

Marker Oct 18, 8:00 PM EDT · Rating dated Oct. 19, 2026

Marker Oct 16, 8:00 PM EDT · Rating dated Oct. 17, 2026

Marker Oct 12, 8:00 PM EDT · Rating dated Oct. 13, 2026

Scale is fixed at 0–100¢. Hourly closes. A dashed line is a rating date or a poll end date stored on this race. Times are US Eastern.

Money

No FEC snapshot for this race.

Recent polls

No individual polls in this snapshot.

What changed

No move recorded since the baseline snapshot.

Results

Results appear here once official returns start on election night, November 3, 2026.

Counts will come from civicAPI, which compiles official state election offices. A winner is shown only when civicAPI projects one, labelled as such.

Official results: Florida election office ↗

Updated Oct 20, 10:10 AM EDT · snapshot Oct 20, 10:10 AM EDT · mode live