Maine's House District 107 race, claim by claim

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Endorses Cooper

The race

One state House seat is at stake in Maine's House District 107, for a two-year term, on November 3, 2026. The incumbent, Mark C. Cooper (Republican), is on the ballot seeking re-election. The confirmed general-election roster is: Joseph A. Campbell (Democratic); Mark C. Cooper (Republican). Sabato’s Crystal Ball rates the chamber Lean D (January 22, 2026, per the predictions table compiled on Wikipedia) — Democrats hold the chamber 75–73 with 3 other members going in (Ballotpedia), a two-seat margin, so the chamber is genuinely in play. No district-level rating for this district was published in the sources consulted.

The candidates, claim by claim

Joseph A. Campbell (D), nominee. Joseph A. Campbell appears on the confirmed general-election roster for this district.

Pros: A willing nominee giving the district’s Democratic voters a choice on the ballot. Cons: No documented break with the Democratic Party toward this publication’s values was located in the compiled record — no Manchin-test break. The organizing vote adds to a Democratic caucus whose program this publication opposes; that caucus weight is lighter in the House than in the Senate, but it does not create an exception where no break exists. The flaw, plainly: Enabler class, not extremist — a reliable party-line vote, which is the standing reason the exception for a Democrat is not earned here.

Mark C. Cooper (R), incumbent. Mark C. Cooper is the incumbent, marked as running for re-election in the roster source.

Pros: The Republican incumbent seeking re-election; Republicans and conservatives are in-tent under this publication’s values (Constitution, capitalism and the free market, Christianity, freedom). Cons: No proven flaw meeting this publication’s standard was located in the compiled record at this sourcing depth. The flaw, plainly: None proven was located in the compiled record.

OUR CALL

We endorse Mark C. Cooper (R). The Republican nominee carries a real record — incumbent service in this seat — and no proven flaw meeting this publication’s standard was located in the compiled record. The Democratic alternative does not pass the Manchin test on any record located.

No extremist classification is made for any candidate here: no documented DSA membership, self-described democratic-socialist identification, or authored socialist program was located for any candidate on this ballot, and enabler is not extremist.

For the complete Election 2026 breakdown — every race, claim by claim — see the full coverage on our website.

Vote early. Research your candidates. Choose the best moderates, whatever their party — no extremism from either side. And encourage your friends and family to do the same.

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Sources

• Maine House of Representatives, Clerk of the House, "Candidate List — 133rd Legislature" (updated October 25, 2026) — confirmed general-election roster, parties, and incumbent markers (95 incumbents listed) — https://legislature.maine.gov/house/Documents/CandidateList
• Ballotpedia, "Maine House of Representatives elections, 2026" — general-election table (incumbency marks) and retiring-incumbents list (54 incumbents did not file for re-election) — https://ballotpedia.org/Maine_House_of_Representatives_elections,_2026
• Record gaps: no district-level legislative voting records, campaign-finance figures, or biographies beyond the offices and facts printed above were verified for the nominees in this district at this sourcing depth; no district-level competitiveness rating was published in the sources consulted (chamber-level ratings only)
• Standing check: no pedophile-association material meeting the proven standard (knowing association with or defense of a convicted pedophile) was located for any candidate on this ballot

AI-assisted article — but the sources are human, and the facts are very real.

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