Polymarket
KalshiNew Jersey's 11th District: Mejia's April Special Win Is Priced as Settling November Too
The market treats New Jersey's 11th Congressional District as a Democratic hold and the November 3, 2026 general election as a formality, and what the price is saying is that the April 16, 2026 special election, which Analilia Mejia won by 21 points, already answered the question this contract asks. It is a New Jersey question with an unusual shape: the seat runs across parts of Essex, Morris and Passaic counties, it changed hands once this year when its previous holder became governor, and the same two major-party names return in November. Mejia was elected on April 16 and sworn in on April 20, 2026, per the Clerk of the House member list; the Division of Elections' official candidate list of September 4, 2026 carries her as the incumbent alongside Republican Joe Hathaway, whom she beat in April, and Alan B. Bond on an independent line. The live board above carries the current prices from both exchanges.
Why the New Jersey 11th District Price Sits Where It Sits
The seat was Mikie Sherrill's from January 2019 until November 20, 2025, the end date Wikidata records on her House term, and she took office as Governor of New Jersey on January 20, 2026 after winning the governor's race that Ballotpedia dates to November 4, 2025 and reports at 56.3% to 43.1% statewide. The special-election timeline the Division of Elections issued on November 21, 2025 set a special primary for February 5, 2026 and a special general election for April 16, 2026, and the governor's writ of election is posted beside it. That calendar is why the 11th has been counted three times in 2026 before November arrives, which is more evidence than any other New Jersey House seat can offer the market, and it is the reason the price sits where it does.
The special primary is the part of that evidence that cuts against a formality. Thirteen Democrats were on the February 5, 2026 ballot, and Mejia won the nomination with 19,789 of 67,465 Democratic votes, 29.3%, only 1,186 ahead of former Representative Tom Malinowski at 18,603, with Tahesha Way at 11,737 and Brendan W. Gill at 9,556; Hathaway was alone on the Republican line with 14,616. A nominee chosen by fewer than three in ten of her party's primary voters is not the usual profile of a candidate whose party Polymarket had at 96% on October 5, 2026, the cheapest Yes on the Democratic side, and the price only makes sense because of what happened ten weeks later.
On April 16, 2026 Mejia took 81,825 votes to Hathaway's 53,520 and Bond's 625, 60.2% to 39.4% on 135,970 ballots, per the official results the Division of Elections dated May 14, 2026. Sherrill's last two general elections in the same lines were 222,583 to 164,556 in November 2024, a 14.7-point margin on 393,751 votes, and 161,436 to 109,952 in 2022, an 18.8-point margin on 273,664 votes. Mejia's special margin of 20.8 points was therefore wider than either of her predecessor's, on a third of the 2024 turnout, and Hathaway's 39.4% was below the 41.8% and 40.2% the Republican line drew in the two previous Novembers. That is the structural fact the market rests on: the Republican vote in this district has a ceiling near 42%, and the special election did not raise it.
The roll agrees. On October 1, 2026 the Division of Elections counted 232,071 registered Democrats, 165,351 Republicans and 205,852 unaffiliated voters in the 11th, a Democratic edge of 66,720, and Ballotpedia carries the district's Cook Partisan Voter Index as D+5 with a 2024 presidential vote of 53.3% for Kamala Harris to 44.6% for Donald Trump. All four ratings in Ballotpedia's weekly review of September 29, 2026 sat at the safest end of the scale, unchanged since July 21: Solid Democratic from the Cook Political Report and Inside Elections, Safe Democratic from Sabato's Crystal Ball and DDHQ. The June 2 regular primary closed the February split as well: Mejia took 52,908 of 64,787 Democratic votes, 81.7%, against three challengers, and Hathaway was again unopposed with 23,961, so the November ballot is the April ballot with the same three names.
Two exchanges price the party question, and the shape of their books matters as much as the number. Kalshi has run the contract on its KXHOUSERACE-NJ11-26 event since January 7, 2026, and Polymarket's event opened on January 28, 2026. On October 5, 2026 the cheapest Yes on each side was Polymarket's: 96% for the Democratic Party and 4% for the Republican Party, each two points under Kalshi's quote for the same side. Kalshi's two contracts carried $12.1K and $5.5K of lifetime volume and no trades at all in the previous 24 hours, while Polymarket's event had drawn $47.3K, and Prediction Genius put the combined volume at $64.9K. The Kalshi spread is the detail to hold onto: on October 5, 2026 the gap between what buyers and sellers of its Democratic contract would accept was 3.7 points, close to the entire cheapest price of the Republican side, which means the figure on the board reflects an absence of sellers more than a crowd of buyers.
The Case Against the New Jersey 11th District Read
The strongest case against the read starts with that book. A contract nobody traded in 24 hours, on a spread wider than the price of the other side, is a number the market has stopped arguing about rather than one it has tested, and a single sized order on Kalshi could move it several points without any news. The second part is the special-election electorate. The 135,970 people who voted on April 16, 2026 were a third of the 393,751 who voted in November 2024, and the one county that decides this district was near even the last time the whole district voted: Morris County cast 40,547 of Mejia's votes and 33,843 of Hathaway's in April, but in November 2024 Sherrill beat Joseph Belnome there by only 105,447 to 96,899, and Passaic's slice of the district went Republican that year, 20,713 to 17,462. A reader who holds this view sees a first-time general-election incumbent with seven months in office, a nomination won with 29.3% of a February primary, and a district whose largest county was close to even in November 2024, and asks why the cheapest Republican Yes should sit at 4% on October 5, 2026. The read's answer is that Essex, where Mejia won 35,496 to 13,936 in April and Sherrill won 99,674 to 46,944 in 2024, outweighs Morris every time the whole district votes, and no count in 2022, 2024 or 2026 has shown otherwise.
What Changes the New Jersey 11th District Read
A trade: Kalshi's Democratic contract went 24 hours without a trade on September 28 and again on October 5, 2026; the first sized order in either direction will move the board more than any poll, and a print below its resting bid would be the first sign the read is being tested rather than assumed.
A poll or a rating: no public poll of the rematch appeared on Ballotpedia's page on October 5, 2026; one showing Hathaway above the 41.8% the Republican line drew in November 2024, or any of the four ratings leaving Solid or Safe Democratic before early voting begins on October 24, 2026, changes the read.
The ballots: mail-in ballots have been going out since September 19, 2026, registration closes on October 13, and early voting runs from October 24 through November 1. The periodic election reports the Division of Elections posts on its 2026 page carry returned-ballot totals, and the Morris County returns are the first non-poll evidence of whether the November electorate looks like April's.
The candidate list is fixed: the deadline to fill a primary-nominee vacancy passed on August 27, 2026, so the three names on the September 4 list are the names on the ballot.
The read is wrong if Hathaway carries Morris County on November 3, 2026 by more than Mejia's margin in Essex; the county canvass on November 18, 2026 is the first official count, and the Board of State Canvassers certifies by December 3.
When the New Jersey 11th District Market Resolves
The election is Tuesday, November 3, 2026, with polls open from 6:00 a.m. to 8:00 p.m. under the Division of Elections' timeline. Mail-in ballots postmarked by election day count if the county boards receive them by November 9; the county boards of canvassers meet on November 18, county clerks transmit official results to the Secretary of State by November 23, and the Board of State Canvassers must certify by December 3, with recount applications due by November 21 and election-contest petitions by December 5. Kalshi's contracts pay on the party of the House member sworn in for NJ-11 for the term beginning in 2027, carry an expected settlement date of January 4, 2027, may close early, and are eligible for accelerated determination once a consensus of media organizations projects the winner. Polymarket's contracts pay on the party of the candidate who wins the November 3 election as shown by a consensus of credible reporting, falling back to the Federal Election Commission's official results if reporting is ambiguous, and the event is dated to end on November 4, 2026. Both books resolve on party rather than on a person: Polymarket assigns a candidate with no Democratic or Republican ballot line to the party they most recently said they would caucus with, while Kalshi pays only if the sworn member belongs to the named party, so Bond's independent line is the one outcome on which the two rulebooks could differ. On this ballot that outcome drew 625 votes in April.
Related New Jersey Election Markets
Two other New Jersey ballot contracts sit beside this one: the Senate race for the Class II seat, which the market also prices as a formality, and the 7th District, where a Republican incumbent is priced as the underdog. The elections desk carries every New Jersey ballot contract the site covers, and the politics hub carries the news that moves them.