How High Will the Blue Wave Hit in Congress? |
Thanks to Donald Trump, a Democratic midterm wave in 2026 was all but inevitable. Following a narrow victory in 2024, the vengeful and extremely cantankerous president spent the first half of his second term in office ordering congressional Republicans around like field hands while compiling an extremely unpopular record and agenda. His job-approval ratings on the eve of the midterms were around the abysmal level of George W. Bush in 2006, lower than those of Barack Obama and Joe Biden before their worst midterms, and much lower than his own previous midterms, in 2018. Republicans’ only chance at holding their trifecta was the very favorable landscape they faced, buttressed in the House by an unprecedented mid-decade gerrymandering initiative and in the Senate by how many at-risk seats were in red states.
It will be shocking if Democrats don’t take control of the House; Silver Bulletin is projecting a 95.8 probability that Democrats will flip it. If the polls are accurate — and there are a lot of close races — Democrats are also favored to flip the Senate (a 78.3 percent probability, per Silver Bulletin).
All that’s left to see now is how far and how high the blue wave goes. Here’s a final breakdown of where things stand.
The House of Representatives
. Republicans could flip as many as 11 seats
As noted above, despite the steadily building blue wave, Republicans gave themselves some House seats to flip via gerrymandering of districts in 2025 and 2026. Three of them (one each in Louisiana, Tennessee, and Texas) are slam-dunk GOP pickups according to the authoritative Cook Political Report. Another Democratic-held seat in Texas is rated “Likely Republican,” and then three more are rated “Lean Republican,” one each in Alabama and Florida, and then another in Maine, where there was no gerrymandering but a popular Democrat representing a red district is retiring. Four other Democratic-held districts affected by GOP gerrymandering are now in toss-up races, two in Florida, and one each in North Carolina and Texas. That adds up to somewhere between four and 11 plausible blue-to-red flips, making the Democratic target for control seven to 14 flips of their own.
. Democrats could flip between 16 and 30 seats
That seven-to-14 target is easily in sight for Democrats thanks to the abundant number of GOP seats where they are favored or at least face even odds.
Again according to Cook, there are two Republican-held seats that are “Solid D” and sure to flip (one a product of the Democrats’ own California gerrymander, the other a court-ordered district in Utah).
Another seat in Nebraska is “Likely D,” but the real harvest is among 13 Republican-held districts that “Lean D”: three in Pennsylvania, two each in Arizona and Iowa, and one each in California, Colorado, New Jersey, North Carolina, Virginia, and Wisconsin. Add to that a decent share of the 14 GOP-held House districts that are in “Toss-Up” races — three in Michigan and one each in California, Colorado, Iowa, Kentucky, Montana, New York, Ohio, Pennsylvania, South Carolina, Texas, and Virginia — and you have probable Democratic pickups in somewhere between 16 and 30 seats. And that’s without winning upsets in any of the 14 “Lean R” districts, some of which are vulnerable in a wave election.
Cook’s Erin Covey prudently estimates that “the most likely outcome at this point is that Democrats flip between 12 and 25 seats, resulting in Democrats holding between 227 and 240 seats in 2027.” By way of comparison, Democrats held 235 seats after their big 2018 midterm win during Trump’s first term. And they held just 222 after their own trifecta win in 2020.
The Senate Races Democrats Look Likely to Win
. Big leads in Georgia and North Carolina
Cook shows nine Senate races in which Democrats are locked-in favorites, and two others rated as “Likely D:” Georgia, where Jon Ossoff is heavily favored to keep his seat, and North Carolina, where Roy Cooper has a big lead over Michael Whatley. But the........