Key Senate races include Michigan, Georgia, Maine, Ohio and Texas
Beyond the contest for congressional seats, the integrity of the midterms is under scrutiny from voter registration through certification of results. The Guardian reported that Donald Trump had sought to amplify those concerns by putting forward “a litany of misleading and false claims about threats to US elections.”
The Justice Department sued states for access to their unredacted voter rolls, seeking to cross-check them against a federal immigration database to identify ineligible voters. A federal judge ruled the department’s policy unlawful, citing limits on its authority and the risks of inaccurate data.
Other disputes concern the use of immigration-enforcement data in voter-fraud investigations, the administration’s efforts to change mail-voting rules and federal election monitors at polling places. The NAACP sued over the planned deployment of monitors, arguing that their presence could intimidate voters. Voting-rights advocates are also watching for pressure on local officials to certify results, mass challenges to ballots and legal disputes that could delay or undermine the transfer of power.
Republicans defend a narrow House majority, and Democrats need a net gain of four House seats to take control. The president’s party has lost House seats in 18 of the past 20 midterm elections, a 90% rate extending back to 1946. The pattern is not inevitable. George W Bush’s Republicans gained seats in 2002 following the September 11 attacks. The Guardian described Barack Obama’s Democrats’ 2010 House loss as a “shellacking,” and Trump’s Republicans lost the House in 2018.
Republicans enter the contest with a narrow margin for error in the House and a more substantial advantage in the Senate. The RealClearPolitics average of national generic polls showed Democrats leading Republicans by 8.2 points in early October. Donald Trump has held campaign rallies in states considered safe for Republicans. Political polarization and years of redistricting reduced the number of genuinely competitive House districts, making it harder for either party to translate a national swing into a large seat change. Reuters estimated that only about 40 to 50 House races were truly competitive.
The House contest is spread across dozens of districts. Republicans are defending vulnerable seats in New York, Texas and Iowa, and Democrats are defending members in districts made more difficult by redrawn congressional boundaries.
Several Senate contests have emerged as key battlegrounds. In Michigan, progressive Abdul El-Sayed is seeking the open Democratic seat after incumbent Gary Peters decided not to seek re-election. In Georgia, Democratic Sen. Jon Ossoff enjoys a healthy poll lead over Republican challenger Mike Collins, according to The Guardian. In Maine, Republican Sen. Susan Collins is defending her seat against Democrat Troy Jackson in a state Kamala Harris won in 2024. In Ohio, Democratic Sen. Sherrod Brown is seeking to return against Republican Jon Husted.
Texas is especially closely watched, with Democrat James Talarico facing Republican Ken Paxton, the state’s attorney general. Republicans have spent about $210 million to help Paxton, whom The Guardian described as “scandal-plagued.” No Democrat has won a statewide election in Texas since 1994, and Trump won Texas by nearly 14 points in 2024.
Other contests in Alaska, Kansas, Iowa, North Carolina and New Hampshire could also help determine control of the Senate. If the chamber splits 50-50, Republican vice-president JD Vance would cast the tiebreaking vote. The latest polls cited by The Guardian showed Democrats ahead in Maine, North Carolina and Kansas, and competitive in Alaska and Ohio. South Carolina and Mississippi, two reliably Republican states, have also faced aggressive Democratic challenges this year.
The November 3 ballot includes all 435 House seats, 35 Senate seats and 39 governorships, alongside thousands of state legislative seats, local offices, judicial contests and ballot measures on taxes, abortion rights and voting rules. The Senate total comprises 33 regular elections and two special elections in Florida and Ohio to fill terms vacated early. Republicans hold 53 Senate seats, while Democrats and independents who caucus with them hold 47; Democrats need a net gain of four seats to secure a Senate majority. Voters will choose governors in 36 states and three US territories, with notable races in Alaska, Iowa, Florida, Georgia, Ohio and Texas.
Congress has two chambers, and both must approve federal legislation and oversee the executive branch. The House is elected every two years, while the 100-member Senate has staggered six-year terms, putting roughly one-third of its seats up for election every two years. Governors and state legislatures shape education, reproductive rights, taxation and election administration. State legislatures also play a central role in drawing congressional district boundaries, although arrangements vary by state and some maps face court challenges or independent commissions.
Donald Trump will remain president on the morning of November 4 regardless of the outcome, though the results could leave him facing a different political landscape. The Guardian said midterm elections fall nearly halfway through a president’s term and described them as “often a telling referendum” on the sitting president’s performance, a framing Trump was actively encouraging by telling voters, “pretend I’m on the ballot.” The Guardian said Democrats hoped to capitalize on growing discontent with Trump to seize the House and possibly the Senate. It said Republicans were fighting to preserve their congressional majorities and prevent “a fresh period of legislative paralysis and investigations into the White House.” The congressional elections will determine which party controls Congress for the final two years of Trump’s second term.
Cost of living regularly tops opinion polls, and Democrats are campaigning hard on affordability, including food prices, housing, fuel and healthcare. The Guardian said the war in Iran added a further complication for Republicans. Immigration remains another defining issue: polls cited by The Guardian suggested many voters believed Immigration and Customs Enforcement’s hardline approach had gone too far, which the outlet said could wipe out many of Trump’s gains with Latino voters in 2024.
Data centers, AI, tariffs, trade, abortion rights, voting rules and the future of democracy also remain important campaign themes. The Guardian said Democratic socialists had scored notable victories in Democratic primaries, creating momentum on the left of the party. Its analysis of closely fought races said personal credibility, local connections, the ability to appeal to independent voters and a blitz of television advertising could outweigh the national party message.
The Guardian assessed that a Democratic victory in either chamber would significantly constrain Trump’s ability to advance his domestic agenda and hasten the president’s decline into “lame duck” status. A Democratic House majority would leave Republicans unable to pass legislation through that chamber without Democratic support. The majority could launch investigations into the administration, demand documents and testimony, subject senior officials to sustained scrutiny and face pressure from its supporters to impeach Trump. The Senate confirms cabinet officials, ambassadors and federal judges, including supreme court nominees. A Democratic Senate majority could block or delay many of Trump’s appointments and force the White House to negotiate over legislation. Even if Republicans retain one or both chambers, a reduced majority could make governing harder, particularly when legislation requires near-unanimous support from the party’s own members.
Voting rules are another source of contention. New restrictions on identification, registration and mail-in voting have taken effect in several Republican-controlled states. Supporters describe the measures as safeguards for election integrity; critics argue they risk making it harder for eligible citizens to vote. The disputes are especially significant in a political climate in which Trump has repeatedly questioned election procedures and the legitimacy of results he dislikes. Voting takes place Tuesday, November 3, but the final outcome may not be known that night. Close contests, different state rules for counting early and postal ballots, and possible recounts or legal challenges could delay the result. Once the count is settled, attention will turn to the 2028 presidential campaign, with both parties seeking to use November’s results as a foundation for the next contest for the White House.