About this race

Susan Collins, a Republican, currently holds this Senate seat and is running for re-election. Forecasters say it’s too close to call — one of the most competitive races of the year. Susan Collins, a Republican, has taken $3,060,139 in donations linked to AIPAC, the pro-Israel lobbying group. Troy Jackson, a Democrat, shows no AIPAC-linked donations in available records.

Key issues in Maine

Major issues facing Maine, based on 2025–2026 reporting. Compare them with what each candidate says they focus on below.

Cost of living — Older voters name cost of living the biggest issue; households paid $4,300 more this year.
Energy prices — Gas tops $4 a gallon and heating oil exceeds $5 as New England energy costs spike.
US-Canada trade — Three-quarters of Mainers worry about US-Canada trade tensions hitting the state's economy.
Housing crisis — A housing shortage raises costs for families, prompting state housing construction initiatives.

Candidates & funding

Susan Collins Republican Nominee

Campaign raised $10,400,000

AIPAC / pro-Israel ~$900K+Super PAC / outside spending $5.6M

AIPAC-linked $3,060,139FundVoter-reported, career 2024–2026 — methodology replication pending

AIPAC PAC and AIPAC-routed contributions, 2026 cycle. Source: FEC filings via FundVoter.

No 2026 conduit activity detectedFEC filings show no earmarked contributions via conduits this cycle

A PAC can give at most $10K per cycle directly to a candidate. But when individuals route donations through a PAC acting as conduit, there’s no cap on how many donors can be bundled. That’s where the real money moves — not from the PAC’s treasury, but from individuals the PAC steered to the candidate. How conduits work →

2026 fundraising (FEC)$16,169,827 raised · $7,708,021 spent · $11,038,115 cash on hand through Jun 30, 2026

Focus: Five-term senator; bipartisan record, healthcare, economy, veterans, seniors

Campaign site ↗

Troy Jackson Democrat Nominee

✓ No AIPAC-linked FEC record

Focus: Medicare for All, lower prescription drug costs, tax billionaires and corporations, workers' rights, working Mainers

Campaign site ↗

View the full funding breakdown for this race on OpenSecrets ↗

Where the money comes from

FEC campaign finance data through Jun 30, 2026. Campaign dollars, by source.

	Susan Collins R	Troy Jackson D
Raised	$16.2M	—
Individuals	$10.5M65%	—
PACs & parties	$1.3M8%	—
Self-funded	$0	—
Other	$4.4M27%	—
AIPAC-linked*	$3.1M	—
Outside spending†	—	—

* AIPAC-linked money is already counted in the rows above — it flags the pro-Israel share, not extra money.

† Independent spending on ads for or against a candidate. It never goes to their campaign.

“Individuals” covers both small-dollar (under $200) and large donors.

Who are the biggest donors?

Every donor ranked by how much they gave, from the candidate’s own FEC filings — individuals, PACs, and party committees all in one list. Expand a candidate to see theirs, then tap any name to learn more about the donor.

Why are so many gifts exactly $10,000? That’s the legal maximum a PAC can give one candidate for the whole cycle — $5,000 for the primary plus $5,000 for the general — so many PACs give the max. Individuals can give up to $3,500 per election.

Susan Collins 6665 donors

FINANCIAL POSITION

Campaign raised$16.2M

Campaign spent$7.7M

Cash on hand$11.0M

FEC 2026 through 06/30/2026

CANDIDATE-CONTROLLED MONEY

Individuals65%

PACs / committees8%

Self-funding0%

Share of campaign receipts. FEC 2026.

ROUTED CONTRIBUTIONS

No 2026 conduit activity detected

FEC filings show no earmarked contributions via conduits this cycle. Career AIPAC-linked total (above) may reflect prior cycles. How conduits work →

Party committee$62K
Individual$44K
Individual$33K
Individual$28K
Individual$26K
Individual$22K
Individual$21K
Individual$21K
Individual$21K
Individual$21K
Individual$20K
Individual$19K
Individual$18K
Individual$18K
Individual$15K
Individual$15K
Individual$14K
Membership PAC$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$14K
Individual$13K
Individual$13K
Individual$13K
Individual$13K
Individual$13K
Individual$12K
Individual$12K
Individual$12K
Individual$12K
Trade association PAC$12K
Individual$11K
Individual$11K
Individual$11K
Individual$11K
Individual$11K

Showing the 50 biggest of 6665 donors. The other 6615 gave $10.7M combined.

Plus $1.2M from small donors giving under $200 each — those aren’t itemized by name.

See Susan Collins’s full FEC filings →

These figures come from the candidate’s own itemized FEC reports (2026 cycle, through the coverage date above), with amendments applied and refunds netted. Joint fundraising transfers are left out of the ranking: they’re pass-throughs, and the individual donations behind them are listed above. Bank interest, vendor refunds, and other non-donation receipts are excluded. Donor names are as reported — the same person can appear twice if their name was recorded differently. Independent spending on ads is never included here — see the Outside spending column.

2026 Maine Senate Election