Midterm elections 2026: what is at stake in the US vote on 3 November

Tuesday 3 November 2026 and what a midterm means

The United States votes on Tuesday 3 November 2026 in the midterm elections 2026, the national vote held halfway through a presidential term. The president is not on the ballot, but the Congress chosen that day will sit during the last two years of his term. Wikipedia’s article on the 2026 United States elections lists the whole House of Representatives, one third of the Senate and a long row of state offices as up for decision. Each claim below names its source and its date, and the story offers no forecast of its own.

The calendar comes from the Constitution. The text of the Twentieth Amendment, as published by Cornell Law School, says the terms of senators and representatives end at noon on 3 January, and that Congress meets each year from that same hour unless it sets another day by law. The new Congress therefore starts on 3 January 2027, two months after the vote. Until that noon the present members keep their seats.

What is on the ballot, from the House to local measures

According to Wikipedia’s page on the 2026 House elections, all 435 voting seats are up, along with five of the six non-voting delegate seats. In the Senate, its page on the 2026 Senate elections counts 35 of 100 seats: 33 regular Class 2 seats plus two special elections in Florida and Ohio. In both states the senator was appointed to fill a vacancy, Ashley Moody in Florida and Jon Husted in Ohio, and each is running to complete a term that ends in 2028.

Governors are chosen too. Wikipedia’s page on the 2026 gubernatorial elections counts 39 contests, in 36 states and three territories: Guam, the Northern Mariana Islands and the US Virgin Islands. Going into the vote the page records 26 Republican and 24 Democratic governors. Its overview of the whole election day adds that 100 ballot measures in 37 states will be decided, without naming them.

Some of those measures are local and concern data centres. In an article dated 21 September 2026, Ballotpedia counted 38 data-centre measures across eight states, 20 of them in Ohio, spread over 17 jurisdictions. They include full prohibitions, moratoriums, zoning decisions and advisory votes. Ballotpedia describes local questions only, so no statewide Ohio measure is described here.

The balance of power in the House and Senate today

The membership page of the Clerk of the House, read on 30 October 2026, shows 218 Republicans, 214 Democrats, one independent and two vacancies in the 119th Congress. The page carries no as-of date for these counts. Wikipedia names the empty seats as Florida’s 20th district, left by a Democrat, and Texas’s 23rd, left by a Republican, both vacant until the next Congress, and gives 218 as the majority threshold.

In the Senate, Wikipedia’s page on the 2026 Senate elections records 53 Republicans, 45 Democrats and two independents who sit with the Democrats. A majority is 51. Of the 33 regular seats on the ballot, 20 are held by Republicans and 13 by Democrats. The same page states that Democrats would need to flip at least four seats to win the chamber. That describes the arithmetic of the contest and says nothing about how likely it is.

Redrawn district maps and a Supreme Court ruling

Several states changed their House maps in the middle of the decade. Wikipedia’s account of the 2026 House elections says that Texas passed a map with five new Republican-leaning districts, after which California’s voters approved a map that removes five Republican districts. It adds that Florida’s governor signed a new map on 4 May 2026 aimed at three to five new Republican seats, and that Utah’s court-ordered map creates a safe Democratic district in Salt Lake County.

A ruling of the Supreme Court also mattered. In April 2026, in Louisiana v. Callais, the court held that stricter scrutiny applies to Section 2 of the Voting Rights Act. Louisiana’s governor then signed a new map on 29 May that removes one of two plurality-Black, Democratic-held districts, and the Supreme Court let Alabama’s new map take effect on 2 June. The New York Times estimated, as Wikipedia reports it, that up to 12 House seats could move from Democratic to Republican hands, and Wikipedia’s summary says the redrawing overall benefited Republicans.

What the polls say, named by pollster and date

Reuters reported on 26 October 2026, in a story carried by GV Wire, on a Reuters/Ipsos poll that closed that Monday. It surveyed 1,679 US adults online, 1,280 of them registered voters, with a margin of error of 2 points for all adults and 3 for registered voters. President Trump’s approval stood at 32%, up one point from a record low of 31% in the poll that closed on 19 October. On the generic congressional ballot, registered voters chose Democrats over Republicans by 47% to 36%, with 11% unsure; counting voters who lean one way, the split was 50% to 41%.

Wikipedia lists five generic-ballot averages, updated on 29 October. They put Democrats ahead by between 8.2 points, at RealClearPolitics for 8 to 26 October, and 9.4, at Decision Desk HQ; the page’s own average is 8.9. Al Jazeera, on 19 October, also reported a Washington Post/ABC/Ipsos poll with presidential approval at 33%. Reuters itself cautions that national numbers miss the state-by-state and district-by-district contests that decide control, where Republicans hold some structural advantages.

Senate races the forecasters single out, and the Alaska lawsuit

Wikipedia’s Senate page records the ratings of the Cook Political Report as of 20 October 2026. Cook calls Republican-held Maine, where Susan Collins faces Troy Jackson, a tossup, as it does the Ohio special election between Jon Husted and Sherrod Brown, Texas between Ken Paxton and James Talarico, Iowa between Ashley Hinson and Josh Turek, Kansas and Alaska. The page also lists Michigan, an open Democratic seat, as a tossup.

Forecasters do not all agree, and Alaska shows it. Cook, Decision Desk HQ, the Economist, Fox News, Inside Elections, NBC News and RealClearPolitics rate it a tossup, while FiftyPlusOne, Sabato’s Crystal Ball, Silver Bulletin and Split Ticket rate it lean Democratic. Republican senator Dan Sullivan faces former Democratic representative Mary Peltola. A second candidate with no party, Daniel J. Sullivan, is also on the ballot. In the August primary, the Associated Press reported through KPTV, Dan Sullivan won more than 68,000 votes, Daniel J. Sullivan 4,107, about 2%, and Peltola finished first.

On 22 October the Justice Department filed suit in federal court in Alaska. The Associated Press says it asks that the state be barred from certifying a Peltola win while Daniel J. Sullivan remains on the ballot, pending an investigation into whether votes for him were meant for the senator. President Trump said on 23 October that he had ordered it. Peltola moved to dismiss on Sunday 25 October, Fox 29 reported on the 27th, calling the suit an unlawful federal intrusion into state elections. The Justice Department says Alaska’s Republican election officials found that his campaign aimed to mislead voters, and the state’s courts have kept him on the ballot. Law professor Derek Muller of Notre Dame told the AP he expects a dismissal. No ruling had been reported by 27 October.

Early ballots, late-arriving mail and how counting works

Rules differ by state. USA.gov says each state sets its own voter identification rules and that most require ID for in-person voting, and it points readers to vote.gov for registration. Early voting is already large. The Fact Check Team of the broadcaster group TNND, in a story carried by KATV on 26 October, cites the University of Florida’s Election Lab for more than 30 million ballots cast. An Associated Press comparison about two weeks before election day found early voting up about 74% in Texas, 39% in Maine and 30% in Ohio against the same point in 2022, and down about 6% in Iowa. The same story warns that these totals measure participation, not support for any candidate.

Counting can run past election night. On 29 June 2026 the Supreme Court ruled 5 to 4, in an opinion by Justice Amy Coney Barrett, that states may count mailed ballots that arrive after election day if they are postmarked by it. Fox 19, carrying an Associated Press report, notes that more than half of the states and Washington, DC have such laws, and in just over half of those the extension covers only military and overseas voters.

Dates to watch after 3 November and where updates appear

The first date is the vote on Tuesday 3 November 2026, the climax of the midterm elections 2026. Close contests, especially where late mail ballots count, may stay open for days. The Alaska case is the next to watch, since a federal judge may rule on the motion to dismiss before or after the vote. The House and Senate then convene on 3 January 2027 at noon, when the new members replace those elected in earlier years and the balance recorded today is replaced by the one voters choose.

For updates, use the sources that publish on the day. The Clerk of the House posts the membership of the chamber, vote.gov and USA.gov explain how to register and find a polling place, and each state’s election office publishes its own official results. News agencies such as Reuters and the Associated Press report projections and totals as they come in.