Midterm elections, held halfway through a president's four-year term, decide who controls Congress. This year they are on November 3. NPR reports that more than $15 billion has been raised to influence the outcome and the control of Congress, making the 2026 midterms the most expensive on record.
Advertising is a large part of it. AdImpact projects $11.6 billion in political advertising in the 2025-26 cycle, more than the $8.9 billion spent in the 2022 midterms and the $11.2 billion in the 2024 presidential cycle.
Individual donors matter too. CNBC reports that Elon Musk put more than $276 million into federal political groups in the third quarter, making him the biggest known individual donor of the midterms. Whether money buys influence is contested; the figures show how much is being spent, not what it achieves.
Read the figures with care, because they measure different things. NPR's $15 billion is money raised to influence the outcome, while AdImpact's $11.6 billion is a projection of advertising alone. Neither tells us who benefits. For revision, hold three numbers: $15 billion raised, $11.6 billion projected in advertising, and the November 3 election date.
The comparison with earlier elections is the key point. The 2022 midterms saw $8.9 billion in advertising and the 2024 presidential cycle $11.2 billion, so this midterm cycle is projected to be larger than a presidential one.
Exam tip: pair this with the idea of a mandate. Because Congress writes the laws and controls public money, who wins these elections shapes policy for the next two years, and that is why so much money is aimed at them.
On November 3, Americans vote in midterm elections. These decide who controls Congress, the group that makes US laws.
NPR says more than $15 billion has been raised to influence the result. That makes these the most expensive midterms on record.
AdImpact, a company that tracks adverts, says about $11.6 billion will be spent on political adverts this cycle. In the 2022 midterms it was $8.9 billion.