U.S. President Donald Trump and Elon Musk.
According to figures first reported by The New York Times, Musk directed $158 million to the Senate Leadership Fund, the principal super PAC supporting Republican Senate candidates. Brandon Bell/Getty Images

Elon Musk has poured more than $276 million into Republican political organizations since July, making the Tesla and SpaceX CEO the largest known donor of the 2026 midterm elections, according to new figures.

The extraordinary spending spree brings Musk's known federal political contributions for the 2025-2026 election cycle to approximately $366 million, exceeding the roughly $290 million he spent during the 2024 presidential race that returned Donald Trump to the White House.

According to figures first reported by The New York Times, Musk directed $158 million to the Senate Leadership Fund, the principal super PAC supporting Republican Senate candidates.

The contribution ranks among the largest known individual political donations in American history and gives Republicans a significant financial advantage as they defend their Senate majority in several competitive states.

Musk also contributed more than $76 million to America PAC, the political organization he established during the 2024 election. The group has developed an extensive voter mobilization operation targeting competitive congressional races, including efforts to identify and turn out Republican voters.

The newly disclosed donations arrive just days before Thursday's Federal Election Commission reporting deadline, when political committees must reveal their third-quarter fundraising and spending activities.

The billionaire's financial intervention extends well beyond the Senate. Musk donated $20 million to the Congressional Leadership Fund, the leading super PAC supporting House Republicans, along with $10 million to the Republican Governors Association and $2 million to the Republican Attorneys General Association.

Another $10 million went to Lone Star Liberty PAC, an organization backing Texas Attorney General Ken Paxton in his Senate campaign against Democrat James Talarico. Texas has emerged as a particularly consequential battleground.

According to FiftyPlusOne's polling average, Talarico led Paxton by 48.4% to 45.0% as of October 12, suggesting a competitive race in a state Republicans have traditionally dominated in statewide elections.

Musk's involvement in Texas also reflects his expanding business interests there. Tesla, X and The Boring Company are headquartered in the state, while SpaceX has expanded its manufacturing and launch operations.

The spending represents a dramatic reversal from Musk's own statements about his political future. "In terms of political spending, I'm going to do a lot less in the future," Musk said in May 2025, following his controversial involvement in the Trump administration.

At the time, Musk was distancing himself from Washington after his prominent role in the administration and a highly publicized dispute with Trump. Their relationship has since improved, with both men appearing together at several recent events.

His renewed political investment comes as his companies maintain substantial relationships with the federal government. SpaceX remains a major contractor for NASA and the Pentagon, placing Musk at the intersection of federal spending, national security and electoral politics. In September, Defense Secretary Pete Hegseth named Musk co-director of Project Meridian, a Pentagon panel examining the future of warfare.