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See the 97 billionaires and their spouses backing Susan Collins

By Josh Keefe
Published on: June 11, 2026
Trust Mark Why you can trust The Maine Monitor
The list comes from a Maine Monitor analysis of Federal Election Commission campaign finance data.
Alex Karp speaking.
Alex Karp, CEO of the software firm Palantir Technologies, speaks during the Annual Meeting of the World Economic Forum in Switzerland in January 2026. He is one billionaire who has donated to support Susan Collins’ reelection. Photo by Markus Schreiber of the Associated Press.

Below is a list of billionaires who have donated to committees raising funds for Republican U.S. Sen. Susan Collins and her Democratic challenger, Graham Platner. 

The first table includes billionaires who appeared on the Forbes 2026 World’s Billionaire List and donated to the following political committees between January 2025 and May 20, 2026: Collins for Senate, Collins Victory Committee, Dirigo PAC, Susan Collins for Maine and Pine Tree Results PAC. Billionaire spouses who donated to these groups were also included. 

The second table lists billionaires who donated to Graham for Maine. 

For additional analysis and explanation, please read The Maine Monitor’s story on billionaire contributions to both candidates. 

Fitzgerald Reporting Fellow Kate Kaufman contributed to this report.

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Josh Keefe

Josh Keefe is a government accountability reporter for The Maine Monitor with a focus on Maine’s child welfare system and indigent defense system.

Previously, he worked as an investigative reporter for The Tennessean in Nashville and Bangor Daily News. Originally from Veazie, he now lives in Portland.

His accountability reporting on Tennessee’s child welfare system, Maine county law enforcement, and the Maine Army National Guard has been recognized by the Sidney Hillman Foundation, New England First Amendment Coalition, Maine Press Association and Tennessee Press Association.

Contact Josh with questions, concerns or story ideas:

Language(s) Spoken: English



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