WESTBROOK, Maine – Maine Gov. Janet Mills on Thursday finally endorsed fellow Democrat Troy Jackson in his race against Republican Sen. Susan Collins, her first public show of support for the former Maine Senate president, with whom she clashed when Jackson led the chamber.

“I encourage Maine people to vote for Democrats up and down the ballot who will stand up for our values and stand up to Trump,” Mills wrote on X, indicating that she had voted for Jackson at her early voting site on Thursday.

Mills, who ran for Senate herself before dropping out this spring, had been notably silent since Jackson earned the Democratic nomination following the collapse of Graham Platner’s campaign.

Last month, Mills spokesperson Ben Goodman told MS NOW that Jackson had not contacted the governor about an endorsement but that she “would welcome a conversation” with him.

On Thursday, though, it was revealed that behind the scenes there had been a last-ditch effort between the two camps to unite Jackson and Mills.

Jackson told MS NOW at a press briefing in Westbrook Thursday morning that he had recently left a voice message for Mills but hadn’t heard back.

A person close to the governor, who was not authorized to speak publicly, confirmed that Jackson left the message seeking Mills’ endorsement shortly after his final, testy debate with Collins on Oct. 15. But Mills was about to depart on a trade mission to Ireland, which took her out of the country for several days. The day of the voicemail, aides for Mills and Jackson connected about getting them together to discuss an endorsement after Mills returned, the person close to Mills said.

But that meeting never happened.

When Mills’ team followed up this week, Jackson’s campaign “indicated an endorsement from her didn’t fit into their schedule for the final stretch,” the person said.

A Jackson spokesperson did not respond to an inquiry about that version of events.

On Thursday, before Mills posted her support, Jackson argued the lack of an endorsement from the governor was not an essential factor in his race, which polls suggest is razor-thin just five days out.

“Look, this race is not about me and Janet or anything like that,” he told MS NOW. “This race is about people that don’t have health care, people that don’t know how to fill their oil tanks, people that don’t know how to get their prescription drugs.”

“I’m not really sure, like, with the governor — I don’t take it personally or anything like that. I mean, Angus King didn’t endorse me either,” Jackson added, referring to Maine’s independent senator, who has historically not endorsed Collins’ opponents.

Jackson has not been shy about his rocky relationship with Mills.

“We obviously disagreed a lot — it’s no secret,” he said in April. “I mean, the governor vetoed more than 40 of my bills.”

CORRECTION (Oct. 29, 2026, 9:15 p.m. ET): A previous version of this article inaccurately depicted a piece of the timeline of the communication between aides for Jackson and Mills. Originally, the person close to the governor said an aide for Mills attempted to make contact after the governor returned from a trade mission and got no response. The person now says aides for both Jackson and Mills spoke on the day Jackson left the message in an attempt to setup a meeting between the two.

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