Midterm Map: Ad Data Shows Democrats Likely to Take House

Democrats appear poised to reclaim the House as voters head to the polls on Nov. 3. The Cook Political Report rates Democrats as favored in 220 seats. They list 17 races as toss-ups and 30 others as competitive but leaning Republican.

Ad spending data confirms the shift. An NPR analysis shows 70 districts where both parties are investing at least six figures in final messaging. This indicates the core battle is determining the size of the Democratic gain rather than whether they take control.

The highest spending is concentrated in specific battlegrounds. Michigan's 7th District and North Carolina's 1st District each have over $12 million in planned ad buys. Florida's 14th, 22nd, and 25th Districts also see major investments. New York's 17th District and Iowa's 2nd and 3rd Districts round out the list of top financial commitments.

Republicans are pulling back from several seats where margins were thin in the 2024 presidential election. AdImpact data shows they slashed ad reservations in districts held by Democratic Reps. Adam Gray (CA-13), Nellie Pou (NJ-09), and Marie Gluesenkamp-Perez (WA-03). They also reduced spending in the district of retiring Republican Rep. Don Bacon (NE-02).

Voter sentiment drives the current outlook. The latest NPR/PBS News/Marist poll finds Democrats hold a 10-point advantage among registered voters. The lead is 8 points with likely voters on the generic congressional ballot. Cost of living, gas prices, and tariffs remain the top economic concerns for Americans.

Redistricting added complexity to the race. A Supreme Court decision allowed Republicans to redraw maps in a mid-decade cycle. They shifted boundaries to add conservative voters to districts held by Democratic Reps. Marcy Kaptur (OH-09), Don Davis (NC-01), Shomari Figures (AL-02), and Darren Soto (FL-09). Democrats made similar adjustments in California for districts held by Republican Reps. James Gallagher (CA-01), David Valadao (CA-22), Ken Calvert (CA-41), Darrell Issa (CA-48), and independent Kevin Kiley (CA-06).

Only Figures and Soto currently sit in districts that favor Republicans according to current ratings. The other redistricted seats mentioned have shifted or remain competitive. This scrambling of the map means historical voting patterns are less reliable indicators for this election.

The 70 districts with heavy spending from both sides voted for former President Donald Trump by an average of 9 points in 2024. This suggests the Democratic push extends into areas that previously supported the GOP nominee. Sixty of these districts are listed as priorities by both party campaign arms.

Not all competitive seats will be close on election night. Some Democratic Congressional Campaign Committee targets gave Trump nearly 60% of the vote in 2024. These areas have seen little to no ad spend from either side. The final outcome will depend on turnout and candidate performance in these high-stakes regions.