DemDaily: 2026 US House Ratings! Battleground Update
May 18, 2026
Amid the historically turbulent 2026 midterm elections and the actions of an unstable president and GOP-controlled Congress, the battleground for control of the United States House of Representatives is far from settled.
| There are 435 seats in the US House of Representatives; 218 are needed for a majority. Republicans hold a 220-215 majority in the House, including vacancies in three Democratic and two Republican-held seats. Democrats need a net gain of three districts to win back the lower chamber. |
The Political Landscape
Republicans entered the election cycle facing the traditional pattern of losses suffered by the party in the White House in off-election years.
In every midterm election since World War II, the sitting president's party has lost an average of 26 seats in the House. The only two exceptions were under Presidents Bill Clinton in 1998 (5 seats) and George W. Bush in 2002 (8 seats).
Going into 2026, Republicans held the overwhelming majority of the "toss-up" contests -- a self-imposed consequence of their loyalty to Donald Trump, whose record-low approval rating hovers at a net -21, with just 36% approving of the president's performance and 57% disapproving.
The Battleground
The dynamics of the 2026 midterms, however, were inalterably changed in August 2025 with the launch of Trump's unprecedented mid-decade redistricting war.
The president's mandate has been to weaponize his Department of Justice to illegally bypass the decennial census and redistricting process, and force gerrymandering in red states where the GOP can manipulate the lines to dilute the voting power of Black and Latino voters to add new Republican seats. By November, the GOP had picked up projected gains in four states, including Texas, Ohio, Missouri, and North Carolina.
Democrats countered with their own redistricting, with voters passing a new map in California that favored five new blue seats, and a court-ordered map in Utah gives Democrats potentially one new seat
In a big win for Trump and Republicans, on April 29, the US Supreme Court's conservative majority struck down a Louisiana congressional map as unconstitutionally racially gerrymandered -- flipping the interpretation of Section 2 of the Voting Rights Act held for over 60 years. Their ruling gutted the last protections for communities of color under the VRA and endangers nearly 70 majority-minority Congressional districts specifically mandated or safeguarded under the Section.
In the last two weeks, new GOP maps were passed in Alabama, Florida and Tennessee, and South Carolina is debating new lines that would eliminate the lone Democratic Congressional District, held for over three decades by former Assistant Democratic Leader Congressman Jim Clyburn.
In an April 22 special election, Virginia voters passed a new map favoring Democrats, but following the Louisiana v. Callais ruling, it was overturned by the State Supreme Court on May 8.
While Democrats are still projected to retake control of the US House, the playing field is considerably more challenging, with both parties defending a similar number of vulnerable seats.
| Generic Congressional Ballot: A May 11-15 New York Times/Siena College poll of registered voters nationwide showed that if the election were held today, 50% of voters would want to see the Democratic Party win control of the US House, while 39% would want to see the Republican Party keep the gavel (MOE: ±2.8%). |
DemList will keep you informed.
Related
DemDaily: Supreme Court Decimates Voting Rights Act 5/4/26
DemDaily: Virginia Levels the Playing Field 4/23/26
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Sources: Ballotpedia, US House, Politico, New York Times, Cook, Sabato, Inside Elections, Race to the WH, The Hill, State Publications, Campaigns
