Trump’s Midterm Test: How the 2026 Elections Could Reshape Congress

Final fortnight: prices, immigration and a weak approval rating 2026 campaign

With Election Day on 3 November 2026, Reuters reporting this month describes a campaign dominated by the cost of living and immigration, with the president’s approval rating at the lowest point of his second term and voter unease over prices and the Iran war. Reuters also reported on 18 October that Trump was faulting aides over campaign spending, candidate choices and the redistricting push, based on people familiar with internal discussions.

Treat polling and ratings as a snapshot, not a result. Individual House and Senate races turn on candidates, turnout and local issues as much as on the national mood. AiTimeline could not open the Reuters pages directly, so these points rely on their headlines and syndicated summaries; check the originals before quoting figures.

Where the chambers stand: Senate 53–47, House 218–214 with two vacancies 2026 campaign

A congressional tracker updated on 19 October 2026 showed the Senate at 53 Republicans, 45 Democrats and 2 independents who caucus with Democrats, and the House at 218 Republicans, 214 Democrats, 1 independent and 2 vacancies (Congress Countdown tracker). The House independent, Kevin Kiley of California, left the Republican Party in 2026 but remains in the House Republican Conference.

Because Vice President JD Vance casts the tie-breaking Senate vote, Democrats need 51 seats, a net gain of four, to control the Senate. In the House, Democrats need a net gain of about three seats against the 2024 results; the exact number moves with vacancies and special elections. Check the official rolls (House Clerk, Senate party division) before relying on any count.

Redistricting: Texas map stands, other Republican redraws stall Maps & redistricting

Mid-decade redistricting turned into a tug-of-war. Texas’s 2025 Republican-drawn congressional map, aimed at five extra GOP seats, was blocked by a three-judge federal panel in November 2025 but allowed by the Supreme Court for 2026, so the primaries ran on the new lines. California voters approved the Democratic-backed Proposition 50 in November 2025. Republicans in Indiana and Kansas declined to redraw, South Carolina’s state Senate blocked a new map in May, and North Carolina and Missouri did redraw, with Missouri’s plan facing lawsuits and a possible referendum.

An April 2026 Supreme Court decision in Louisiana v. Callais weakened Section 2 of the Voting Rights Act and prompted further redraws, including in Louisiana, where a hearing is set for 27 October. Reuters’ 21 October analysis, as its headline puts it, describes the Republican redistricting gambit as having faltered; Axios reporting relayed by other outlets said the expected net gain had shrunk from about 13 seats to about four. Those projections are estimates, and litigation can still change individual maps.

The longest US government shutdown, 43 days Laws & funding

A funding lapse began on 1 October 2025 and ended on 12 November, the longest shutdown on record at 43 days, when a stopgap funding bill passed. It showed how thin margins and appropriations fights can freeze Washington, and it left spending deadlines as live campaign material. See AiTimeline’s US government shutdowns timeline and the debt-ceiling standoffs timeline for earlier standoffs.

Off-year elections and California’s Proposition 50 Maps & redistricting

On 4 November 2025 Democrats won the Virginia and New Jersey governorships and California voters approved Proposition 50, which let the legislature use Democratic-drawn congressional lines through the decade’s remaining elections. Analysts read the results as an early sign of the political climate, though off-year contests are not reliable predictors of a midterm.

Texas redraws its map and the redistricting race begins Maps & redistricting

In late August 2025 Texas Republicans passed a new congressional map after Democratic legislators briefly left the state to block a vote. Trump-backed, it was meant to add up to five Republican-leaning seats and set off retaliatory and copycat moves in other states.

Trump signs the One Big Beautiful Bill Act Laws & funding

Trump signed the One Big Beautiful Bill Act on 4 July 2025. It combined tax provisions with changes to federal spending programmes, and it became the centrepiece of the administration’s domestic agenda. Supporters argued it would promote growth; critics pointed to deficits and cuts to social programmes. Whether a new majority could revise it depends on Senate rules, the budget process and the presidential veto. Bill text and status are on Congress.gov.

Second term begins with Republicans controlling both chambers Past midterms

Trump was inaugurated for a second term with Republicans holding the Senate at 53–47 and a narrow House majority. Unified control gave the White House a clear legislative route, though thin House margins let a handful of Republican defections stall votes.

Trump defeats Kamala Harris; Republicans win the Senate Past midterms

Trump won the 2024 presidential election and Republicans took the Senate from Democrats while holding a narrow House majority. Official certified results are published by the Federal Election Commission.

Republicans win the House; Democrats keep the Senate Past midterms

Republicans won the House by a narrow margin, about nine seats net, while Democrats retained the Senate. Divided government followed for Joe Biden’s last two years, with House Republicans leading committees and investigations.

Democrats take the House during Trump’s first term Past midterms

Democrats won the House with a net gain of roughly 41 seats while Republicans kept the Senate and added seats there. House Democrats used committee powers to investigate the administration and impeached Trump in December 2019. Historical results are tabulated by the House Office of the Historian.

Republicans win the Senate in Obama’s sixth year Past midterms

Republicans gained nine Senate seats and took control of the chamber, and added about 13 House seats, giving them both chambers for Barack Obama’s last two years. Senate control mattered most for judicial and executive confirmations.

Republicans win the House during Obama’s presidency Past midterms

Republicans gained roughly 63 House seats, while Democrats kept the Senate. The new House majority reshaped spending debates and challenged the administration’s agenda.

Democrats win both chambers in George W. Bush’s second term Past midterms

Democrats gained about 31 House seats and won the Senate, ending Republican control of Congress during the Iraq War. It is the last midterm in which one party flipped both chambers.

Republicans win the House for the first time in 40 years Past midterms

Republicans gained roughly 54 House seats and won the Senate, taking the House for the first time since 1954 under Newt Gingrich’s “Contract with America.” Midterms do not always punish the president’s party: Democrats gained House seats in 1998 and Republicans in 2002.