Midterm Ad Spending Has Surpassed $10B. Where Is the Money Coming From?

Texas Attorney General Ken Paxton, a Republican, poses at a rally for his Senate bid at Southern Roots Brewing Co. on Oct.

17, 2026, in Killeen, Texas. —Joel Angel Juarez—Getty Images Political advertising spending for the midterm election cycle this year has reached a record high, surpassing $10 billion as of last week.

It is projected to reach $11.6 billion by Election Day, according to the media tracking group Ad Impact .

The previous midterm spending record was set in 2022 at $8.9 billion, the organization reported, and the 2024 presidential cycle saw some $11.2 billion spent on ads.

The figure does not capture other campaign expenses, such as staffing, travel, and voter outreach.

But it does measure one of the more influential political campaign tools: Research published in the American Political Science Review in 2021 estimated that a Senate candidate with a $2 million television advertising advantage over an opponent could gain about 10,000 votes—potentially enough to tip a close race.

Read More : Ohio May Be the Sleeper Senate Race of the Midterms Spending the most, however, does not guarantee electoral success, experts tell TIME.

“It is important to keep in mind that having the most, and spending the most, does not guarantee you wins,” says Brendan Glavin, the director of insights at the research group OpenSecrets, which tracks money’s effect on U.S. politics, policy, and elections.

“You need to have enough to compete, and you need to be able to get your name out, and people need to know who you are.

But it’s not always about having the most.” That has not deterred both parties from digging deep into their piggy banks this cycle—although their spending has been uneven.

Republicans have significantly outspent Democrats in Senate races, at $233 million to $121 million on broadcast television ads across nine of the tightest upper-chamber races last month, according to AdImpact.

In races categorized as “toss-ups” by the Cook Political Report, AdImpact data attributes $947 million to Republicans and $625 million to Democrats, including ads that have not yet been aired.

A large portion of the funding comes from a small number of deep-pocketed individuals bankrolling super PACs.

The spending gap is much narrower in House races, where Republicans have outspent Democrats by $14 million across 21 toss-up races.