Elon Musk spent more than $276 million in newly disclosed donations to Republican groups since July, making him the biggest known donor of the 2026 midterm election as the party fights to hold its majorities in Washington this November.
The largest share – $158 million – went to the Senate Leadership Fund, the main super PAC backing Republican Senate candidates, according to figures provided by Musk's representatives to The New York Times and confirmed Monday to CNBC by Lindsey Curnutte, a spokesperson for Musk's America PAC.
The Tesla and SpaceX CEO also gave more than $76 million to America PAC, the group he founded during the 2024 election, which has built a large voter-turnout operation in competitive Senate and House races.
The new contributions bring Musk's known federal political giving for the 2025-26 cycle to roughly $366 million, already surpassing the approximately $290 million he spent during the 2024 presidential election. The scale of the latest giving is historic: Musk's $158 million contribution to Senate Leadership Fund is among the largest known political donations by an individual in U.S. history.
The new figures were disclosed days ahead of a Thursday Federal Election Commission filing deadline, when political committees are due to report their third-quarter finances.