Maine Democrat Graham Platner secured his party's nomination to challenge Sen. Susan Collins in November in one of Tuesday's key midterm primaries.

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.

Graham Platner is seeking to make a Democratic nomination for U.S. Senate official in advance of one of the most anticipated contests of the year.

Graham Platner is seeking to make a Democratic nomination for U.S. Senate official in advance of one of the most anticipated contests of the year

Primary voters in Maine, Nevada, South Carolina, and North Dakota head to the polls to choose nominees for U.S. Senate, U.S. House and governor in state races.

Four states vote Tuesday, with Maine’s key Senate race capturing the most national attention and Donald Trump picking sides in South Carolina’s race for governor.

The Maine primary will be held on June 9, 2026. Voters will cast their ballots in the U.S. House, U.S. Senate and governor’s races.

Graham Platner looks to claim the Democratic nomination to face Susan Collins in the race for U.S. Senate; the former governor Paul LePage is vying for a congressional seat.

Maine Democrat Graham Platner is seeking to make the nomination official to take on Republican Sen. Susan Collins in November.

Controversies about his past dogged the Democrat on the eve of the primary. But he still has a great chance of defeating Susan Collins.

Incumbent Sen. Lindsey Graham is dominating early returns with 65.4% of the vote, well ahead of challenger Mark Lynch at 22.8%.

Lt. Gov. Pamela Evette and Attorney General Alan Wilson will advance to a primary runoff.

Rep. Nancy Mace, who led a high-profile campaign after sparring with President Trump, did not advance.

The primary victories set up a race that could be key to Democrats' hopes of winning control of the Senate.

Platner still faces questions about his ability to win in November.

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

Platner advanced in the Democratic primary with 74.7% of the vote and 10% of ballots counted, according to the Associated Press.

Graham Platner’s fiery candidacy may fit the moment, but his baggage could sink Democrats' chances of taking back the Senate.

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The controversial candidate that has sparked the interest of voters in Maine will face sitting Republican senator Susa Collins; 'If you believe that we can change our politics and…