Polymarket
KalshiTrump Carried NY-03, Yet the Market Prices Tom Suozzi's Rematch With Michael LiPetri as a Democratic Hold
NY-03 House odds 2026 rest on a rematch the district has already run once. Tom Suozzi beat Michael LiPetri Jr. by 12,958 votes on November 5, 2024, on the same ballot where Donald Trump carried the district, and the market treats that split as the baseline rather than an accident of one year. New York voters in parts of Nassau, Queens and Suffolk counties settle the seat on November 3, 2026, and both venues pay on the winner's party, not on a name. What the price is saying is that a crossover incumbent facing an opponent he has already beaten, with far more money in the bank, is hard to move; the live board above carries the current figure.
Who is on the NY-03 ballot in 2026
The field is fixed. The State Board of Elections' amended certification for the general election, dated October 7, 2026, lists Thomas R. Suozzi on the Democratic line and Michael J. LiPetri Jr. on both the Republican and the Conservative lines for Representative in Congress, District 3. The same certification describes the district as part of Nassau, part of Queens and part of Suffolk, and the Working Families row for the seat carries no name. No version of that certification since the original of September 2, 2026 has changed the District 3 entry, so the matchup the market prices is the matchup on the ballot.
Suozzi is the sitting member. The Clerk of the House's member list, published October 1, 2026, gives the 3rd District seat to Thomas R. Suozzi, a Democrat from Glen Cove, sworn in on January 3, 2025. Wikidata records three earlier House terms in the seat from January 3, 2017 to January 3, 2023, and a return to the seat on February 28, 2024, partway through the term that ended in January 2025. LiPetri served in the State Assembly for the 9th District from 2019 to 2021, according to Ballotpedia's candidate profile, and is running for the seat a second time after losing to Suozzi in 2024.
One detail of the ballot cuts against Suozzi before a vote is cast. In 2024 he also ran on the Common Sense line, which gave him 2,160 votes, and the 2026 certification lists no second line for him in this district. LiPetri keeps the Conservative line he carried last time. The Democratic column has to do all of Suozzi's work in 2026; the Republican candidate has two columns doing his.
The race also sits under a governor's contest with a Long Island name at the top. The same certification lists Kathy C. Hochul and Adrienne E. Adams as the Democratic ticket for governor and lieutenant governor, and Bruce A. Blakeman and Todd Hood on the Republican and Conservative lines. Nassau County's own site identifies Blakeman as the County Executive, elected on November 2, 2021. That statewide race has its own page, the New York governor market, and its outcome is a separate contract; here it matters only as the name at the top of every NY-03 ballot in Nassau.
What the NY-03 price is saying
The case for the favourite starts with the 2024 count. The Clerk of the House's official statistics for the November 5, 2024 election put Suozzi at 185,491 votes on the Democratic line and 2,160 on Common Sense, against 161,196 for LiPetri on the Republican line and 13,497 on the Conservative line. That is a 12,958-vote margin out of more than 363,000 cast for the two men. Ballotpedia, citing The Downballot, has Trump winning the district 51.4% to 47.1% over Kamala Harris on November 5, 2024, which makes NY-03 one of 23 Democratic-held House seats Trump carried. Suozzi ran several points ahead of the top of his own ticket, and the price rests on the assumption that he can do it again with the same opponent.
The seat has not been safe for either party this decade, which is why the price is not higher. The Clerk's 2022 statistics show George A. D. Santos winning it on November 8, 2022 with 145,824 votes across the Republican and Conservative lines to 125,404 for Robert P. Zimmerman. Cook's Partisan Voter Index, as reported by Ballotpedia, rates the district EVEN. A seat that changed hands in 2022 and again in 2024 is not one the venues treat as settled.
The outside signals line up with the market. Ballotpedia's weekly ratings table for October 13, 2026 shows the Cook Political Report moving the race from Lean Democratic to Likely Democratic, joining Decision Desk HQ at Likely, while Inside Elections and Sabato's Crystal Ball held at Lean Democratic. Federal Election Commission figures compiled by Ballotpedia show Suozzi with $5.68M in cash on hand as of June 30, 2026, against $587K for LiPetri as of March 31, 2026. Ballotpedia also lists no public poll of the race. A money gap that size, with no poll to contradict it, is the structure the price is built on.
The price path fits that reading. Polymarket had the Republican Party at 9% on September 1, 2026 and at 13% on October 5, 2026, a four-point drift toward LiPetri over a month in which the District 3 ballot did not change. By October 15, 2026, after Ballotpedia's October 13 update recorded the Cook change, Polymarket had the Republican side back at 11%. On the Democratic side Polymarket went from 92% on September 1, 2026 to 88% on October 5, 2026 and held there. On October 15, 2026 Polymarket had Democrats at 88% and Kalshi at 89%, one point apart, which means the two venues read the seat the same way even though their settlement rules differ.
The case against the NY-03 read
The strongest case against the read is that the 2024 result was the ceiling, not the floor. Suozzi won by 12,958 votes in a presidential year, when the two major candidates drew more than 363,000 votes between them; in the 2022 midterm the two drew about 271,000, and a margin of the same size is a larger share of a smaller electorate. Trump carried the district by more than four points on November 5, 2024, and the National Republican Congressional Committee lists NY-03 as a target and LiPetri among its MAGA Majority candidates, per Ballotpedia.
The ballot structure supports the same argument. The Conservative line delivered 11,965 votes in 2022 and 13,497 in 2024, a bloc Suozzi has never had, and the Common Sense line that added 2,160 votes to his total is gone. A Nassau County Executive heads the Republican ticket for governor. Holders of this view would say the market prices a repeat of 2024 when the only things that changed both point toward LiPetri, and that a Republican price near one in ten understates a seat the party won four years ago.
What changes the NY-03 read
The read is wrong if LiPetri's two lines together outpoll Suozzi's one on November 3, 2026. Before that, these are the dated, observable things that would move it:
• Registration deadline, October 24, 2026: the State Board of Elections' 2026 political calendar sets it as the last day a registration application must reach the board of elections for a voter to take part in the general election.
• Early voting, October 24 to November 1, 2026: the same calendar sets the nine early voting days, and turnout across them is the first hard evidence of how large the 2026 electorate will be.
• Ratings: Cook moved the seat to Likely Democratic on Ballotpedia's October 13, 2026 update; a move back to Lean, or a shift toward Toss-up at Inside Elections or Sabato's Crystal Ball, would be the first public sign that the money gap is not holding.
• A first public poll: Ballotpedia listed none as of October 15, 2026, so any credible poll showing LiPetri within the 2024 margin would be new information the price does not yet carry.
• Election night, November 3, 2026: the Conservative column is the tell; in 2024 it alone carried 13,497 votes, more than the final margin.
When the NY-03 market resolves
Kalshi and Polymarket ask the same question in different words, and the settlement rules differ. Kalshi's HOUSENY3-26 pair pays on the party of the House member sworn in for NY-03 for the term beginning in 2027, with accelerated determination once a consensus of media organizations projects the winner; its latest expiration is November 3, 2027. Polymarket's NY-03 House Election Winner market pays on the party of the candidate who wins the seat in the November 3, 2026 election, judged by a consensus of credible reporting, falls back on official results reported by the Federal Election Commission if there is ambiguity, and reads party from the candidate's ballot-listed affiliation. In practice both settle on the same fact, but a contested count would leave Polymarket waiting on reporting and Kalshi on a swearing-in.
Related New York markets
The Nassau County seat next door is on the New York 4th District market page, and the Suffolk County seat to the east is on the New York 1st District market page; both are priced by party in the same way as NY-03. The New York 17th District market page covers that race on the same terms. The New York races this site follows are collected on the New York elections hub, and the rest of the political desk is on the New York politics hub.
