Republican Sen. Susan Collins announced her reelection bid for a sixth term in a brief video while unboxing New Balance sneakers. First elected in 1996, Collins, 73, is a prominent figure in the Senate, currently chairing the Appropriations Committee. Facing potential Democratic challengers, including Maine Gov. Janet Mills and progressive newcomer Graham Platner, Collins’ race could significantly impact Senate control. The Maine Senate contest is vital as Democrats aim to flip four seats to regain a majority.