Primary elections were held Tuesday in Maine, featuring contested races for both U.S. Senate and governor.

In the Senate race, Graham Platner secured the Democratic nomination and will face Republican incumbent Susan Collins in the general election. Platner has signaled he will run a populist campaign against Collins, who is seeking reelection.

The gubernatorial race in both major parties required ranked choice voting tallies to determine winners, indicating closely contested primaries. Democratic Governor Janet Mills is prevented from seeking reelection due to term limits, creating an open race for the state's top office.

The term limits on Mills have led to a competitive field of candidates seeking to succeed her as governor. The use of ranked choice voting in both primaries suggests no candidate received an outright majority in the initial vote count.

Maine's primary results will set the stage for November's general election, with the Senate race potentially drawing national attention as Republicans seek to maintain or expand their presence in the chamber.