Incumbent Democrat Bill Keating's commanding trader consensus at 91% in the Massachusetts 9th congressional district stems from his strong reelection history, including a 56-44% win in 2024, and a D+6 partisan voter index that favors Democrats despite the district being Massachusetts' least liberal. Ratings from Cook Political Report (Solid Democratic), Sabato's Crystal Ball (Safe Democratic), and others reinforce this, bolstered by Keating's $570,000 cash-on-hand edge through late 2025 over Republican Robert MacAllister's $65,000. Macallister's March announcement as a commercial fisherman challenger has not shifted odds amid absent polling. Upsets could arise from a stronger GOP primary nominee on September 1, Keating scandal, or national midterm Republican wave, though historical precedents suggest low upset risk in such seats.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoMA-09 Vencedor da eleição da Câmara
MA-09 Vencedor da eleição da Câmara
Partido Democrata
91%
Partido Republicano
8%
Partido Democrata
91%
Partido Republicano
8%
A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Mercado Aberto: Jan 28, 2026, 11:09 AM ET
Resolver
0x2F5e3684c...A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Resolver
0x2F5e3684c...Incumbent Democrat Bill Keating's commanding trader consensus at 91% in the Massachusetts 9th congressional district stems from his strong reelection history, including a 56-44% win in 2024, and a D+6 partisan voter index that favors Democrats despite the district being Massachusetts' least liberal. Ratings from Cook Political Report (Solid Democratic), Sabato's Crystal Ball (Safe Democratic), and others reinforce this, bolstered by Keating's $570,000 cash-on-hand edge through late 2025 over Republican Robert MacAllister's $65,000. Macallister's March announcement as a commercial fisherman challenger has not shifted odds amid absent polling. Upsets could arise from a stronger GOP primary nominee on September 1, Keating scandal, or national midterm Republican wave, though historical precedents suggest low upset risk in such seats.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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