The battle for control of the House could come down to just a handful of races — and some of the tightest contests still aren't showing signs of tipping one way or the other.
If history and President Trump’s low approval ratings are any indication, Democrats are in a strong position to win back the House of Representatives. The president’s party typically loses ground in the midterms, and the Cook Political Report currently says Republicans are on track to lose control of the chamber, where they currently hold a narrow 218-214 edge over Democrats.
But there’s a major wrinkle: The 2026 congressional map has been remade through an extraordinary nationwide redistricting war that ultimately gave Republicans an edge. Nine states are using new maps in November, and the redistricting battle alone could net the GOP around four seats.
That makes these closely contested districts all the more important. After examining the key Senate races to watch, we're turning our attention to Congress's other chamber with this look at eight races that could help determine which party controls the House next year.
New York’s 17th District: Mike Lawler vs. Cait Conley
Republican Rep. Mike Lawler is fighting to hold onto one of the GOP’s most vulnerable seats in the country. His Hudson Valley district typically leans slightly Democratic, but it’s closely divided enough that the Cook Political Report considers the race a toss-up. But Lawler has built a reputation for winning in difficult territory.
His Democratic challenger is Cait Conley, an Army veteran and former national security official who won a crowded primary. Conley is trying to tie Lawler to President Trump, arguing that his support for key parts of the president’s agenda — including his tax-and-spending bill and tariffs — has hurt Hudson Valley families. For his part, Lawler is emphasizing his bipartisan record, pointing to his work with Democrats on issues ranging from housing affordability and rail safety to protections for Haitian immigrants.
Colorado’s 8th District: Gabe Evans vs. Manny Rutinel
GOP Rep. Gabe Evans barely won this seat in 2024, prevailing by less than one percentage point. Now Democrats are hoping to make his first term his last.
Democratic state Rep. Manny Rutinel is looking to unseat Evans in a district that’s almost evenly divided between the two parties. Stretching from the northern Denver suburbs to Greeley, the district is also home to a large Latino population, putting issues like immigration and the cost of living at the center of the race.
Pennsylvania’s 7th District: Ryan Mackenzie vs. Bob Brooks
Pennsylvania’s 7th District has bounced between the two parties in recent years, and 2026 could bring yet another flip. Republican Rep. Ryan Mackenzie narrowly captured the Lehigh Valley seat in 2024, and is now defending it against Democrat Bob Brooks, a longtime firefighter and president of the Pennsylvania Professional Fire Fighters Association.
The Cook Political Report considers the race a toss-up, with affordability and the cost of living emerging as major issues. Brooks has criticized Mackenzie’s support for President Trump’s tax-and-spending law and tariffs, arguing that they’ve made life more expensive for working families. Mackenzie, meanwhile, has defended the tax cuts and backed higher tariffs, though he has acknowledged that uncertainty surrounding the administration’s tariff policies has been difficult for businesses.
Michigan’s 7th District: Tom Barrett vs. William Lawrence
This district has become something of a political ping-pong ball, changing party hands in each of the last two elections. Trump carried the district by less than two points in 2024, the same year Republican Rep. Tom Barrett flipped the seat. But it could flip again: Both the Cook Political Report and Inside Elections say the race could go either way.
Hoping to keep Barrett from a second term is Democrat William Lawrence, a progressive organizer who helped found the Sunrise Movement, the youth-led climate group that helped propel the Green New Deal into the national spotlight.
Lawrence has zeroed in on the rise of new data centers, warning that they could drive up utility bills and give Big Tech too much sway over local communities. Barrett has raised concerns, too, but he says local officials should decide where the facilities are built. The two also differ on some of the issues hitting voters’ wallets: Lawrence supports Medicare for All and more affordable housing, while Barrett has focused on tax cuts and lowering costs for families.
Iowa’s 1st District: Mariannette Miller-Meeks vs. Christina Bohannan
The third time could be the charm in one of the country’s closest House races. Republican Rep. Mariannette Miller-Meeks and Democrat Christina Bohannan are facing off for the third election in a row — after Miller-Meeks won their 2024 matchup by just 799 votes. And it’s shaping up to be another nail-biter: Neither Cook Political Report nor Inside Elections are forecasting a clear winner.
This year, affordability and health care are front and center. Bohannan has attacked Miller-Meeks for supporting Trump’s tariffs and Medicaid cuts, while Miller-Meeks has defended her record, saying she’s protecting the program for those who need it while cracking down on waste and fraud. Iowa’s rising cancer rates have also emerged as an issue in the race, with both candidates laying out plans to expand prevention, research, and access to care.
California’s 22nd District: David Valadao vs. Randy Villegas
Republican Rep. David Valadao is once again fighting to hold onto his Central Valley seat. This time, he’s facing off against Democrat Randy Villegas, a political science professor and local school board member. Health care has emerged as a major issue in the race, with Villegas criticizing Valadao for voting for Trump’s sweeping tax-and-spending law and its changes to Medicaid.
Valadao has repeatedly survived in Democratic-leaning territory, but he faces a tougher map this year after California voters approved new congressional districts designed in response to Republican-led redistricting in Texas. The Cook Political Report currently rates the district — which has a D+1 partisan lean (basically political jargon for a district that tilts slightly Democratic) — as a toss-up.
Texas’ 34th District: Vicente Gonzalez vs. Eric Flores
Democratic Rep. Vicente Gonzalez faces a tough reelection bid against Republican Eric Flores, an Army veteran and former federal prosecutor backed by Trump.
Gonzalez narrowly won reelection in 2024, but Republicans made his path tougher by redrawing the district last year to include more GOP-friendly territory near Corpus Christi while shedding Democratic-leaning parts of the McAllen area. Under the new lines, Trump would have carried the district by roughly 10 points in 2024, compared with 4.5 points under the old map, according to the Texas Tribune.
But the race remains highly competitive. Gonzalez has focused heavily on affordability, including rising food and health care costs. At the same time, Flores has embraced the GOP’s agenda and argued that the president’s tax-and-spending law is benefiting South Texans. But even with the district now leaning Republican, Cook Political Report data doesn't currently point to a clear favorite.
Washington’s 3rd District: Marie Gluesenkamp Perez vs. John Braun
Democratic Rep. Marie Gluesenkamp Perez is seeking a third term in a Southwest Washington district that President Trump carried in 2024.
She’s facing Republican John Braun, a Navy veteran, manufacturing executive, and longtime state senator who currently serves as the state Senate minority leader. In a Truth Social post earlier this year, Trump gave Braun his “complete and total endorsement,” vowing that he would “never let you down.”
Gluesenkamp Perez has proven she can win in tough territory, twice defeating Trump-backed Republican Joe Kent — first in 2022 and again by a wider margin in 2024 (even as Trump took the state at the presidential level). She’s built a reputation as a moderate willing to break with her party, a strategy that has helped her appeal to voters in a Republican-leaning district. But this could be another close one: The Cook Political Report currently rates the race a toss-up.
