IncumbentSusan Collins Republican
General election
incumbent U.S. senator (1997–present)
- Tim Rich Independent
former restaurant owner
- Democrat Nominee TBD
Democratic primary results
adjunct professor at the University of Maine (write-in candidate)
former deputy secretary of the Maryland Department of the Environment and nominee for U.S. Senate in 2024
Sullivan harbor master
governor of Maine (2019–present) (suspended campaign)
Republican primary results
incumbent U.S. senator (1997–present)