Maine Governor Janet Mills is poised to launch her campaign for the U.S. Senate, challenging incumbent Senator Susan Collins in what is expected to be a key contest for the 2026 elections. Sources indicate that Mills will formally announce her candidacy next week, as she aims to secure a significant position in the upcoming electoral race. While many Democrats are supportive of her run, notable figures like Bernie Sanders have publicly discouraged her from entering the contest, highlighting divisions within the party. This race is anticipated to garner considerable attention as it unfolds, given its potential implications for the Senate balance.