Graham Platner was all but certain to win Maine’s Democratic Senate primary on Tuesday. But the progressive populist Platner was on course to earn about three-fourths of primary voters’ support — effectively ending any question about whether Maine Democrats wanted him to be their standard-bearer against Republican Sen. Susan Collins in one of the nation’s marquee races in November.

Some voters say there's been too much focus on Platner's personal life.

Maine’s Republican-held Senate seat is one of three Senate contests rated as toss-ups this year.

It’s official: the Democrats are heading to the midterms with an oysterman from Maine.