The 10 most competitive House contests could decide whether Democrats or Republicans retain the chamber, with seats ranging from Ohio's 7th to Montana's 1st on the line.

Ohio's 7th District

Ohio's 7th District, long a GOP stronghold, has become vulnerable after scandal-plagued Rep. Max Miller (R-Ohio) faced domestic abuse allegations from his ex-wife. Emily Moreno, daughter of Sen. Bernie Moreno (R), accused Miller of physical and emotional abuse, which he denied.

Republicans, including Bernie Moreno, have called for Miller to step aside. Democrat Bryan Poindexter, a union iron worker and Brook Park City Council member, has run a vigorous campaign attacking Miller's economic record, corruption, and abuse scandal.

DDHQ forecasts Poindexter as the slight favorite to win and flip the seat for Democrats.

Iowa's 2nd District

Rep. Ashley Hinson's (R) open seat in Iowa has become an unexpected battleground. Favorable conditions for Democrats have made the seat, which Hinson won by more than 15 percentage points two years ago, increasingly competitive.

DDHQ forecasts Democrat Lindsay James, a state lawmaker, as the slight favorite. James has linked her opponent, Joe Mitchell, to President Trump and accused him of moving to the 2nd District to run for the open seat. Mitchell, backed by the president, has campaigned on opposition to special interests and called James a radical leftist.

Texas's 15th District

Democratic Tejano singer-songwriter Bobby Pulido may unseat Rep. Monica De La Cruz (R-Texas), who won the district by 14 points last cycle. The district, which runs through southern Texas, will test Latino voters' appetite for Republicans after Trump's 18-point win in 2024.

GOP-led redistricting last year shifted De La Cruz's district, but she remained the favorite as the 2026 cycle began. The incumbent still holds a slight upper hand, per DDHQ. Pulido has criticized De La Cruz's ties to Trump, while the Republican has portrayed the singer as an out-of-touch celebrity. Both candidates focus on agriculture, border security and affordability.

Maine's 2nd District

Rep. Jared Golden (D-Maine) retirement has returned the classic swing district to contest. DDHQ gives former Maine Gov. Paul LePage (R) a slight edge. The Republican faces Democratic State Auditor Matt Dunlap in a tight race that the GOP seeks to clinch.

Cook Political Report moved the race from "likely" to "leans" Republican after polls showed Dunlap in the lead. Dunlap has focused on Iran's war and its impact on Mainers' pocketbooks, while LePage has painted him as a radical.

Texas's 35th District

This San Antonio-area district was redrawn to favor the GOP, but shifting Latino tides may change that. Democratic Sheriff's Deputy Johnny Garcia runs against Republican Air Force veteran Carlos De La Cruz, who previously served with Rep. Greg Casar (D) before the new map.

DDHQ forecasts De La Cruz as the slight favorite. Cook Political Report moved the race from "leans Republican" to "toss up" amid heavy super-PAC spending. More than half of eligible voters are Latino, making it a key test of GOP hold.

Garcia describes himself as an "old school Democrat" focusing on lowering costs and public safety. De La Cruz, brother of Monica De La Cruz, campaigns on border security, anti-corruption, defeating the "woke left" and protecting farmers. Both candidates have broken with their parties on the trail - De La Cruz called Trump's tariffs "too broad," and Garcia hit former President Biden over the southern border.

Florida's 22nd District

South Florida's open 22nd District is a competitive race after Trump won it by 10 points in 2024 but lost by 3 in 2020. Democrat Pia Dandiya faces Republican Casey Askar for the seat. Rep. Lois Frankel (D-Fla.) is retiring after this term.

DDHQ says Askar is narrowly favored. High-profile figures, including former Transportation Secretary Pete Buttigieg and Speaker Mike Johnson, have campaigned in the Sunshine State. Both candidates support a congressional stock-trading ban. Dandiya, a former school principal, Apple lobbyist and White House Domestic Policy Council fellow, campaigned on affordability. Askar, a former Marine and CEO of a construction and real estate company, highlighted his alignment with the president.

North Carolina's 11th District

The seat, which Republicans won comfortably two years ago, may flip after Rep. Chuck Edwards (R-N.C.) withdrew following a rare censure over sexual harassment allegations from female staffers.

Republican state Rep. Jennifer Balkcom replaced Edwards and has worked to consolidate GOP support in a district with a 5-point GOP advantage, per Cook Political Report. However, handicappers have moved the race toward Democrats, and DDHQ has Democrat Jamie Ager narrowly favored. Ager, a fourth-generation farmer, prioritizes Hurricane Helene recovery funds. His opponent also stresses relief support.

Pennsylvania's 8th District

Rep. Rob Bresnahan (R-Pa.) faces a tight race against Scranton Mayor Paige Cognetti (D). The first-term congressman won his seat by less than 2 points in 2024. DDHQ forecasts Cognetti as the slight favorite.

Cognetti has criticized Bresnahan's stock trading, claiming he made more than 600 trades worth $8 million. Bresnahan, in turn, has labeled Cognetti a radical.

Colorado's 3rd District

Rep. Jeff Hurd (R-Colo.) seeks to keep his seat by emphasizing bipartisanship and distancing from Trump. He has opposed Trump's tariffs on Canada and the sale of public lands. Trump withdrew and then reversed his endorsement after Hurd challenged the tariffs. DDHQ lists Hurd as the favorite heading into Tuesday.

Combat veteran Dwayne Romero challenges Hurd in a southwestern district that hasn't elected a Democrat in nearly two decades.

New York's 17th District

Democrat Cait Conley, a combat veteran, challenges Rep. Mike Lawler (R-N.Y.) in a must-watch House race. Lawler is one of two Republicans who won in districts former Vice President Kamala Harris won in 2024, showing resilience in tough climates. DDHQ lists Conley as the narrow favorite.

Lawler is viewed as one of the most bipartisan members and enjoys strong support within the Jewish community, a key constituency. He has campaigned on tax relief. Conley focuses on lowering healthcare and utility costs.

Montana's 1st District

Democrats target a flip after Republican Rep. Ryan Zinke retires. Republican Aaron Ford is narrowly favored to keep the seat, per DDHQ, but Democrat Sam Forstag has gained momentum. Forstag, a smokejumper and union leader, centers his campaign on working-class messaging and is backed by Sen. Bernie Sanders (I-Vt.).

Flint, a retired Army lieutenant colonel, has Trump's support. The president campaigned for the House hopeful earlier this month.