Campaigners Pour Six-Figure Sums Into 70 House Districts Ahead of Vote

Campaign finance data for the 2026 midterm elections shows a final push focused on 70 House districts where both political parties are spending at least six figures each. An NPR analysis of advertising expenditures indicates the contest extends beyond standard swing states into deep red territories and recently redrawn districts. The data covers the final week leading up to the November 3 election date.

The spending patterns reveal a high-cost strategy in key battlegrounds. Michigan’s 7th District and North Carolina’s 1st District are the most expensive races, with over $12 million planned for each. Other high-spend areas include Florida’s 14th, 22nd, and 25th Districts, New York’s 17th District, and Iowa’s 2nd and 3rd Districts. Republicans are also investing heavily in conservative strongholds such as Tennessee, Oklahoma, and Arkansas.

Polling data from NPR, PBS News, and Marist shows Democrats holding a 10-point advantage among registered voters and an 8-point lead with likely voters on the generic congressional ballot. This statistical edge suggests a broad competitive field for the minority party. The Cook Political Report rates Democrats as favorites in 220 seats, lists 17 races as toss-ups, and identifies 30 additional seats that lean toward the Republican Party.

Recent redistricting maps have altered the competitive landscape. Following a Supreme Court decision that limited aspects of the Voting Rights Act, Republicans shifted boundaries to consolidate conservative voters. This move impacts districts previously held by Democratic Representatives Marcy Kaptur, Don Davis, Shomari Figures, and Darren Soto. Democrats executed similar boundary changes in California, affecting districts held by Republican Representatives James Gallagher, David Valadao, Ken Calvert, Darrell Issa, and independent Kevin Kiley.

Voter sentiment is driven by economic factors including rising gas prices, tariffs, and the ongoing war in Iran. A record number of congressional retirement announcements has also increased the number of open seats. The 70 districts with substantial ad spending from both parties voted for the Republican presidential candidate by an average of nine points in the 2024 election. Sixty of these districts are designated as priorities by both the Democratic and Republican House campaign committees.

Several competitive seats involve Representatives who lost their party’s presidential nominee in 2024. These include Democratic Representatives Adam Gray, Nellie Pou, and Marie Gluesenkamp-Perez, as well as retiring Republican Representative Don Bacon. AdImpact data shows Republicans have reduced ad reservations in these four districts in recent weeks. Millions of voters have already cast ballots in this cycle, with the final tally expected on November 3.