2026 Midterm Landscape: Redistricting, Special Elections, and Voter Sentiment Shape the Battle Ahead
A series of recent political developments—including court decisions on congressional maps, special election results, and polling data—are reshaping the outlook for the 2026 midterm elections. Key factors include Republican-led redistricting efforts in several states, Democratic overperformance in recent special elections, low approval ratings for President Donald Trump, and widespread public concern over the economy.
Redistricting and Court Decisions
Virginia Supreme Court Ruling
The Virginia Supreme Court invalidated a congressional map that had been approved by voters in a referendum and passed by Democratic lawmakers. The court ruled that the proper legislative process was not followed. The map, which was estimated to have given Democrats a potential net gain of four House seats, was overturned, affecting over 3 million Virginians who voted in the referendum.
Supreme Court Decisions and State Actions
The U.S. Supreme Court issued a 6-3 decision allowing a new congressional map in Texas to proceed. A lower court had previously identified the map as an illegal racial gerrymander; the Supreme Court majority indicated it appeared to be a legal partisan gerrymander. The court also struck down a Louisiana congressional map, leading Republican Governor Jeff Landry to postpone U.S. House primary elections. This postponement occurred after over 100,000 absentee ballots had been cast. The ACLU of Louisiana filed legal challenges.
In Alabama, the Supreme Court cleared the way for the state to change its congressional map following a decision related to the Voting Rights Act.
Impact on Competitiveness
According to the Cook Political Report, only 18 of 435 House races are currently rated as toss-ups. David Wasserman, senior elections analyst, stated that recent redrawing of congressional boundaries has not shown a pronounced advantage for either party but has reduced the number of competitive districts. Nick Troiano of Unite America stated that 32 states currently lack a single competitive congressional race. The Cook Political Report estimated Republicans could gain 5-14 seats from redistricting.
State-Level Redistricting Efforts
- Tennessee: Republicans advanced a new map aimed at eliminating the state's sole Democratic-held seat.
- Florida: Republicans have been pushing a map that could yield additional seats.
- California: Democrats have implemented a ballot measure to create more advantageous seats for their party.
- Utah: A judge approved a map expected to create a new Democratic-leaning House seat.
Special Election in Tennessee's 7th Congressional District
Results
Republican candidate Matt Van Epps defeated Democratic state Representative Aftyn Behn in a special election. Van Epps secured approximately 54.5% of the vote to Behn's 45.5%. This 9-point margin represents a 13-point shift compared to the 2024 presidential election, in which former President Donald Trump carried the district by 22 points.
Campaign Focus and National Attention
Both candidates centered their campaigns on the cost of living and affordability. The election attracted over $6.5 million in external financial contributions and featured campaign appearances by high-profile figures, including former Vice President Kamala Harris, former Vice President Al Gore, House Speaker Mike Johnson, and a telephone rally from former President Trump.
"This 9-point margin represents a 13-point shift compared to the 2024 presidential election."
Broader Electoral Trends
Democratic Overperformance
According to analysis by The Downballot, Democratic candidates have, on average, improved upon their 2024 presidential election margins by approximately 11% in 2026 special elections and roughly 13% since early 2025. Specific instances of shifts include:
- Florida's 1st District: Shift from R+32 (2024) to R+15 (2025)
- Florida's 6th District: Shift from R+33 (2024) to R+14 (2025)
- Virginia's 11th District: Shift from D+34 (2024) to D+50 (2025)
- Arizona's 7th District: Shift from D+27 (2024) to D+39 (2025)
Gubernatorial and State Races
Democratic candidates won gubernatorial elections in New Jersey and Virginia. In Wisconsin, liberal candidate Chris Taylor won a Supreme Court election with 60% of the vote, expanding the liberal majority to 5-2.
Primary Turnout Data
- Texas: A record 2.3 million votes were cast in the Democratic primary.
- North Carolina: More votes were cast in the Democratic statewide primary than in the Republican one.
- Mississippi: An almost 80% increase in Democratic primary turnout compared to the 2018 Senate primary.
Voter Sentiment and Polling
Presidential Approval
President Trump’s approval ratings remain below 40% in several polls. A recent NPR/PBS News/Marist poll placed his approval at 37%, with 59% disapproving. The same poll found 51% of respondents strongly disapprove. Approval for his handling of the economy was at 35%, and approval for his handling of Iran was at 33%.
Economic Concerns
Polls indicate widespread public dissatisfaction with the economy.
- A Gallup poll indicated economic confidence had reached a 17-month low, with 27% of respondents saying the economy was improving and 68% saying it was worsening.
- A Politico/Public First poll reported that approximately 4-in-10 Trump voters consider the cost of living to be at a historic high.
- A Vanderbilt University poll found that over 60% of Trump supporters disagreed that the cost of living had decreased over the past year.
- An Economist/YouGov poll found three-quarters of respondents, including a majority of Republicans, believed tariffs had led to higher prices.
Midterm History
Since World War II, the president's party has lost an average of 27 House seats and 4 Senate seats in midterm elections. When a president's approval rating is below 50%, average House losses increase to 33.
Congressional Ballot Test
On average, Democrats currently hold approximately a 5-point lead in polls asking which party voters would prefer to control Congress.
Voter Enthusiasm
A poll found 61% of Democrats and 53% of Republicans are "very enthusiastic" to vote in the midterms.
"When a president's approval rating is below 50%, average House losses increase to 33."
Congressional Landscape
House Seats
Republicans hold a 218-214 majority with three vacancies. Of 36 House seats considered toss-ups or leaning toward one party, 18 are Republican-held and 18 are Democratic. Among toss-up seats, 14 are Republican and four are Democratic.
Senate Seats
Republicans hold a 53-47 majority. Of the 35 Senate seats up for election, 22 are Republican-held and 13 are Democratic. Ten seats are considered competitive: six Republican-held (Maine, North Carolina, Alaska, Ohio, Iowa, Texas) and four Democratic-held (Georgia, Michigan, New Hampshire, Minnesota).
Retirements
A total of 51 members of the House have announced they will not seek reelection in the 2026 cycle, with 30 being Republicans and 21 Democrats.
Campaign Finance
Senate Races
Democratic candidates in Senate races for Maine, North Carolina, Ohio, Alaska, Florida, Iowa, and Texas raised more than their Republican opponents in the most recent filing period. Texas Democratic nominee James Talarico reported $27 million in Q1 receipts. Georgia Senator Jon Ossoff reported $14 million. Former North Carolina Governor Roy Cooper reported nearly $9 million in his primary account.
Party Committees
Republican party committees and super PACs hold approximately double the cash on hand compared to their Democratic counterparts. Including Trump's MAGA Inc. PAC, Republicans hold nearly $850 million.
Primary System Reforms
Closed Primaries and Competitiveness
As over 90% of U.S. House districts are considered safe for one party, primary elections increasingly determine congressional outcomes. Closed partisan primaries, which limit participation to registered party members, have been cited by critics as incentivizing ideological extremism. John Opdycke of Open Primaries stated that closed primaries punish collaboration across party lines. Nick Troiano of Unite America stated that under closed primaries, "independent-minded members of Congress are being basically hunted to extinction by the ideological flanks."
State-Level Changes
Louisiana switched from an open primary to a semi-closed system. Statewide ballot measures in Arizona, Colorado, Nevada, and Oregon in 2024 aimed at creating nonpartisan primaries were unsuccessful.
"Independent-minded members of Congress are being basically hunted to extinction by the ideological flanks." — Nick Troiano, Unite America