Maine's Senate primary election results: Platner declared winner in Democratic primary (opens original article in a new tab)

Graham Platner won the Democratic primary for Maine's Senate race, with 75% of the vote, while incumbent Sen. Susan Collins faces a key election to maintain the Republican majority.

• Graham Platner declared winner in Maine's Democratic Senate primary with 75% of the vote.
• Incumbent Sen. Susan Collins is seeking her sixth term and is uncontested in the Republican primary.
• Platner aims to defeat Collins in the general election, with the DNC supporting his campaign.
• Collins campaign highlights her legislative achievements and bipartisan record.