Maine Democrats appear to be settling on Troy Jackson, a logger, as their new candidate for U.S. Senate. This comes ten days after their original nominee, Graham Platner, officially dropped out of the race. A party convention is scheduled for July 25 to make the choice official.

Whoever the party picks will run against Republican Sen. Susan Collins in November.

NPR reported on July 20 that Democrats are "close in on" a frontrunner to replace Platner. The story, by Kevin Miller and Michel Martin, aired on Morning Edition. The Washington Post reported the same day that Maine Democrats are "rallying around" Jackson to take Platner's place. Thousands of Democrats gathered in meetings across Maine the weekend of July 18-19 to begin the replacement process, according to the Post.

The rush is because Platner left suddenly. Platner won the Democratic primary on June 9, 2026. He was featured in a June 1 NPR interview with Leila Fadel as the "likely Democratic nominee" talking about his plans to challenge Collins. Then on July 10, Platner submitted paperwork to officially leave the race, as NPR reported that same day.

Twelve Maine Democrats signed up to run to replace Platner, according to a New York Times report published July 15. By July 13, NPR reported that the state party had set up a process for choosing a replacement, though voters were still "reeling from his exit." A July 14 NPR report described how Platner's supporters were reacting to his departure and how the party was handling the open spot.

The Democratic convention to formally fill the vacancy is scheduled for July 25, according to Ballotpedia. Under Maine's party rules, when a nominee drops out, the replacement is chosen by a convention of party delegates — local party members picked to represent their communities — instead of holding another statewide vote. A new primary election would take too long given the tight schedule.

The broader context here is that a late replacement candidate starts at a real disadvantage. Platner's withdrawal on July 10 leaves the replacement candidate roughly four months to build name recognition across the state, raise money, and set up a campaign against a longtime incumbent who has won tough races before. The new nominee will also need to bring together supporters of all twelve candidates who ran for the spot and re-energize Democratic voters who NPR said were still processing Platner's exit as of mid-July.

Jackson's rise as the candidate both sides can agree on, if it holds through the July 25 convention, would narrow the field from twelve contenders down to one. The Post's reporting that Democrats are coming together around him suggests the party wants to avoid a long internal fight and present a united front heading into the fall campaign.

Collins, 73, has held the seat since 1997 and is the longest-serving Republican woman in Senate history. Maine's Senate races have drawn national attention and spending in recent years. The Democratic Senatorial Campaign Committee's involvement in the replacement process, if any, has not been detailed in the available reporting.

The July 25 convention will determine whether Jackson secures the nomination or whether one of the other eleven candidates comes out on top. The winner will face Collins on the November ballot.