Midterm ads show Democrats poised to take House control

The central question in the final days of the 2026 midterms is no longer whether Democrats will win the House, but by how much. Ad spending data indicates that Republicans are retreating to a smaller number of seats, while Democrats are spreading resources across a much wider map. This shift reflects the reality that the party out of power holds a structural advantage in midterm elections.

An NPR analysis identifies 70 districts where both parties have invested at least six figures into their final messaging efforts. The financial commitment varies by state. In toss-up districts in Michigan, North Carolina, New York, and Florida, each side has deployed more than $10 million. Conversely, Republicans are spending seven-figure sums in deep-red districts in Tennessee, Oklahoma, and Arkansas. These expenditures suggest a strategy focused on holding a core base rather than expanding it.

The Cook Political Report currently lists Democrats as favorites in 220 seats. It designates 17 districts as toss-ups and another 30 as leaning Republican. This breakdown contrasts with the current 218-214 Republican majority. The data suggests the existing margin of victory is unsustainable. Democrats are favored in a substantial portion of the chamber, implying a clear transfer of control on November 3.

Several factors are driving this shift. A poll conducted by NPR, PBS News, and Marist shows Democrats holding a 10-point lead among registered voters on the generic congressional ballot. An eight-point lead appears among likely voters. Cost of living remains the top issue for voters, with rising gas prices, tariffs, and the war in Iran shaping the economic mood. These factors contribute to an anti-incumbency sentiment that is visible in primary election results.

Redistricting has also altered the competitive landscape. A Supreme Court decision rolled back parts of the Voting Rights Act, allowing Republicans to redraw boundaries in states like Ohio, North Carolina, Alabama, and Florida. This change added conservative voters to districts held by Democrats such as Marcy Kaptur, Don Davis, Shomari Figures, and Darren Soto. Only Figures and Soto are in districts that currently favor Republicans. In California, Democrats redrew lines to benefit Republican seats held by James Gallagher, David Valadao, Ken Calvert, Darrell Issa, and Kevin Kiley.

The most expensive races include Michigan's 7th District and North Carolina's 1st District, both with over $12 million in planned spending. Other high-cost contests include Florida's 14th, 22nd, and 25th Districts, New York's 17th District, and Iowa's 2nd and 3rd Districts. The average of these 70 competitive districts voted for Donald Trump by nine points in the 2024 presidential election. This indicates that the battle is for swing areas, not solidly blue or red territory.

Both the Democratic and Republican House campaign arms have designated 60 districts as priorities. This overlap in spending targets underscores the impact of the current administration's unpopularity. While many districts listed by the Democratic Congressional Campaign Committee gave Trump close to 60% of the vote in 2024, they have seen little advertising spend. The focus remains on the specific 70 races where money is currently flowing.