Maine Gov. Mills will announce challenge to Sen. Collins in key 2026 Senate contest, AP sources say
Maine Governor Janet Mills will challenge Republican Senator Susan Collins for her Senate seat in 2026, as confirmed by sources close to Mills. This race is significant for Democrats, who see a chance to gain a seat in a state that favored Kamala Harris in the last presidential election. Mills, a two-term governor, has been encouraged to run by national party leaders.