The Crucial 2026 Election Races to Monitor

Both the United States Senate and the House of Representatives are up for grabs this week as voters head back to the ballot boxes.

The primary uncertainty is which political faction will hold Senate majority power come January. Republicans currently maintain 53 seats, while Democrats hold 45, alongside two independent senators who caucus with the Democratic side. Democrats are broadly anticipated to capture the North Carolina Senate seat left open by outgoing Senator Thom Tillis (R), and they need four total pickups to secure command of the chamber. At present, the Cook Political Report categorizes seven Senate contests as pure tossups.

These electoral battles, together with polling averages and forecasting market forecasts, are detailed below. It is important to note that the poll aggregations in this overview generally reflect voter preferences when asked who they plan to support. Conversely, the prediction market figures, provided solely for background insight, display the candidates financial participants are wagering on. While traditional polls and betting markets frequently point in the same general direction, they actually quantify distinct metrics. Furthermore, forecasting platforms noticeably missed the mark during the recent Brazilian election, assigning incumbent President Luiz Inacio Lula da Silva roughly a 20 percent probability of victory before he ultimately won.

Ohio Senate — Senator Jon Husted (R, incumbent) versus Sherrod Brown (D). The Cook Political Report labels this matchup a tossup; Kalshi market participants assign Brown a 71 percent likelihood of winning; Polymarket participants likewise give Brown a 71 percent chance; RealClearPolitics poll aggregations show 47.9 percent of polled individuals intend to back Brown compared to 45.3 percent for Husted. Cook Political has notably tilted this contest toward Democrats over recent weeks. Turmoil within the Ohio gubernatorial race, sparked when Republican candidate Vivek Ramaswamy broadcast an advertisement featuring rival Amy Acton’s estranged mother, may also influence this Senate contest. Fairshake deployed $56 million against Brown, whereas the Digital Freedom Fund, a PAC supported by Cameron and Tyler Winklevoss, invested approximately $7 million targeting Brown.
Kansas Senate — Senator Roger Marshall (R, incumbent) versus Adam Hamilton (D). The Cook Political Report classifies this race as a tossup; Kalshi bettors assign Hamilton a 52 percent probability of victory; Polymarket bettors grant Hamilton a 53 percent chance; RealClearPolitics polling averages indicate 47.6 percent of surveyed voters favor Hamilton versus 45.4 percent supporting Marshall.
Alaska Senate — Senator Dan Sullivan (R, incumbent) versus Representative Mary Peltola (D). The Cook Political Report rates this contest as a tossup; Kalshi participants calculate a 69 percent chance for Peltola to win; Polymarket participants estimate a 71 percent chance for Peltola; RealClearPolitics poll data demonstrates 49.4 percent of respondents lean toward Peltola against 48.2 percent for Sullivan.
Michigan Senate — Abdul El-Sayed (D) versus Mike Rogers (R). The Cook Political Report treats this seat as a tossup; Kalshi traders award El-Sayed a 73 percent winning probability; Polymarket traders award El-Sayed a 74 percent probability; RealClearPolitics averages reflect 49.1 percent backing El-Sayed contrasted with 45.6 percent backing Rogers.
Texas Senate — Ken Paxton (R) versus James Talarico (D). The Cook Political Report views this race as a tossup; Kalshi market actors give Talarico a 71 percent probability of prevailing; Polymarket market actors give Talarico a 72 percent probability; RealClearPolitics polling averages report that 48.8 percent of participants plan to select Talarico compared to 47 percent for Paxton.
Iowa Senate — Representative Ashley Hinson (R) versus State Representative Josh Turek (D). The Cook Political Report deems this contest a tossup; Kalshi bettors place Hinson’s victory odds at 55 percent; Polymarket bettors place Hinson’s odds at 55 percent; RealClearPolitics poll tracking shows 46 percent supporting Hinson versus 45.5 percent supporting Turek. The Digital Freedom Fund contributed $418,000 toward supporting Hinson’s campaign.
Maine Senate — Senator Susan Collins (R, incumbent) versus Troy Jackson (D). The Cook Political Report marks this race as a tossup; Kalshi participants project Jackson has a 69 percent likelihood of success; Polymarket participants project Jackson has a 69 percent likelihood; RealClearPolitics poll averages document that 48.7 percent of participants prefer Jackson against 47.3 percent favoring Collins.

Regarding the House of Representatives, several specific contests warrant close observation. Certain districts operate as recognized bellwethers, such as Kentucky’s Sixth Congressional District. This seat opens due to Representative Andy Barr securing the Republican nomination for the state Senate seat vacated by retiring Senator Mitch McConnell. Veteran legislative aides note that these bellwether districts provide clear signals regarding the broader performance of each political party.

Kentucky’s Sixth House District — Ralph Alvarado (R) versus Zach Dembo (D). The Cook Political Report classifies this race as a tossup; Kalshi gamblers give Dembo a 55 percent probability to win; Polymarket gamblers give Dembo a 56 percent probability; Recent survey data gathered by The New York Times grants Dembo a slight advantage.
Alabama’s Second House District — Representative Shomari Figures (D, incumbent) versus Rhett Marques (R). The Cook Political Report categorizes this race as leaning Republican; Kalshi participants assign Marques a 56 percent chance of winning; Polymarket participants assign Marques a 56 percent chance; Recent polling compiled by The New York Times puts Marques ahead. Fairshake supported Figures in 2024 but abstained in 2026.
Michigan’s Fourth House District — Representative Bill Huizenga (R, incumbent) versus Sean McCann (D). The Cook Political Report rates this race a tossup; Kalshi bettors estimate McCann holds a 61 percent chance of victory; Polymarket bettors estimate McCann holds a 61 percent chance; Recent polls curated by The New York Times confer a minor advantage to McCann. Cook Political adjusted its classification from leaning Republican to tossup during October. Fairshake previously endorsed Huizenga, a known crypto advocate, though the rating shifted subsequent to that endorsement.

Additional contests highlight lawmakers who have played instrumental roles in the digital asset sector’s legislative initiatives.

Arkansas’ Second House District — Representative French Hill (R, incumbent) versus Chris Jones (D). The Cook Political Report evaluates this race as likely Republican; Kalshi traders award Hill an 83 percent chance to triumph; Polymarket traders award Hill an 82 percent chance; Recent polls collected by The New York Times favor Hill. Hill, currently leading the House Financial Services Committee, directed his panel’s push to advance proposals concerning stablecoins and market structure. Fairshake has endorsed his reelection effort. Democratic entities targeted Hill’s seat earlier this month in an effort to broaden their map.
Nevada’s Fourth House District — Representative Steven Horsford (D, incumbent) versus Cody Whipple (R). The Cook Political Report labels this seat as likely Democratic; Kalshi market bettors provide Horsford a 95.6 percent probability of success; Polymarket market bettors provide Horsford a 96.2 percent probability. Horsford has championed cryptocurrency taxation legislation that secured bipartisan committee approval in September. Fairshake backs his campaign.
Wisconsin’s First House District — Representative Bryan Steil (R, incumbent) versus Mitchell Berman (D). The Cook Political Report categorizes this contest as leaning Republican; Kalshi betting trends indicate an exact tie; Polymarket similarly reflects a deadlock; Recent surveys compiled by The New York Times depict an even race. Steil, who heads the House Financial Services Committee’s digital assets panel, has secured backing from Fairshake. Market indicators on Kalshi and Polymarket initially favored his return, though the margin compressed throughout October.
Alaska’s At-Large House District — Representative Nick Begich (R, incumbent) versus Jim McDermott (Libertarian), Bill Hill (Independent), and Eric Hafner (nominally a Democrat who resides outside Alaska and remains incarcerated). The Cook Political Report rates this race as leaning Republican; Kalshi participants project a 78 percent chance for Begich to win; Recent polls compiled by The New York Times put Begich ahead. Fairshake supported Begich during the primary stage.
North Carolina’s First House District — Representative Don Davis (D, incumbent) versus Laurie Buckhout (R). The Cook Political Report designates this a tossup, revising its previous stance of leaning Republican; Kalshi forecasters give Davis an 84 percent chance of victory; Polymarket forecasters give Davis an 86 percent chance; October polls assembled by The New York Times variously show a minor edge for Buckhout or a solid lead for Davis, contingent upon which campaign financed the poll.
California’s Forty-Fifth House District — Representative Derek Tran (D, incumbent) versus Chuong Vo (R). The Cook Political Report characterizes this race as likely Democratic; Kalshi participants calculate Tran’s winning probability at 93.9 percent; Polymarket participants calculate Tran’s probability at 94 percent; Verified aggregated poll numbers were unavailable. This contest is included because it stands out as one of the rare Fairshake-supported races not considered a foregone conclusion for either party.