Democratic U.S. Senate candidate Troy Jackson‘s primary source of income over the last two years came from two international unions based in Maryland, according to a personal financial disclosure filed this week.

Since the beginning of last year, Jackson received $90,000 from the International Association of Machinists and $48,000 from the International Union of Painters and Allied Trades for general consulting work.

Jackson’s campaign said the candidate provided consulting and organizing help for various national and local issues. Jackson is no longer providing those services, the campaign said.

“Troy’s financial disclosure reflects a lifetime of working for a paycheck,” a spokesperson said in a written statement. “He’s a logger and union member who understands what it means to worry about making ends meet — and he would bring that experience to a Senate dominated by millionaires. Susan Collins has spent nearly 30 years in Washington. Troy has spent his life fighting for people who work for a living.”

Jackson’s disclosure was filed late Monday after he received a 55-day extension. It’s the first detailed look the candidate has provided into his personal finances.

Sen. Susan Collins‘ campaign accused Jackson of not being transparent about his finances, and of taking “dark money” and corporate PAC money as Maine Senate president, despite vows to refuse that money during his U.S. Senate campaign.

“As Senate president, he was paid by three unions and a dark money group,” Collins spokesperson Blake Kernen said in a written statement. “And rather than file his disclosure on time in August, he took the latest extension possible and filed at 9:54 p.m. on the final day.”

In 2025, Jackson reported payments totaling $5,100 from the Eastern Maine Labor Council and $4,800 from Food and Medicine, a 501 (c)(4) social and economic justice group. He served as an organizer for both Brewer-based groups, his disclosure shows.

Jackson is leaning heavily on his working-class background, including his prior work as a logger, in his race against Collins, the Republican incumbent. But his disclosure does not list any income from logging.

His campaign said Jackson worked as a logger for 15 years before joining the state Legislature in 2002, at which point he continued logging intermittently.

Jackson also listed his construction and land management firm, Jackson Associates, on the paperwork. He did not list any assets for that firm, but he did report that some of his consulting income went to his company.

It’s unclear exactly how much Jackson or Collins’ total assets are worth, since they are only required to disclose minimums and ranges on the Senate financial forms.

Jackson disclosed between $147,000 and $430,000 in assets, including between $100,000 and $250,000 in state retirement benefits from his partner.

Yet Jackson’s earnings and assets pale in comparison to Collins, who earns at least $174,000 a year as a senator and receives additional income through her husband, Tom Daffron. The couple has an estimated net worth of $7.1 million and owns between $4.2 million and $10 million in assets, according to Congressstock.com.

Collins’ personal holdings include mutual funds and bank deposits. Daffron has a robust portfolio of stocks, bonds and government securities.

Jackson reported commercial real estate in Allagash owned by his longtime partner as an asset valued between $15,000 and $50,000. But he did not report any income from that property.