A special election will be held in the coming months, according to state law.
Graham Platner officially withdrew from the Maine Senate race on Friday.
The Supreme Court is allowing Alabama to use a congressional map favoring Republicans in this year's elections, blocking a lower court ruling that the map intentionally discriminates against Black people.
Louisiana lawmakers on Friday approved a new congressional map that could allow Republicans to flip one of the state's two Democratic-held House seats in the 2026 midterms.
The Supreme Court has rejected Virginia's bid to restore a congressional map that would have given Democrats a chance to pick up four seats in the closely divided House of Representatives.