Incumbent Republican Rep. Troy Downing's unopposed status in the June 2 Republican primary for Montana's 2nd Congressional District underpins trader consensus pricing a GOP hold at 91.5%, reflecting the district's R+15 Cook Partisan Voter Index and Downing's 2024 general election win by 66%. Three Democrats—Sam Lux, Brian Miller, and Jonathan Windy Boy—vie in their primary, but forecasters rate the seat Solid or Safe Republican amid historical incumbent retention rates exceeding 95% in such districts. Recent ballot certification post-March filing deadline solidified the field, with no major GOP challengers emerging. Challenges could arise from a scandal targeting Downing, a Democratic primary winner with unexpected fundraising surge, or a national midterm wave, though base rates suggest low likelihood before the November 3 general election.
Experimental AI-generated summary referencing Polymarket data · UpdatedMT-02 House Election Winner
MT-02 House Election Winner
Republican Party
92%
Democratic Party
7%
Republican Party
92%
Democratic Party
7%
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/).
Market Opened: Jan 28, 2026, 11:10 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 Republican Rep. Troy Downing's unopposed status in the June 2 Republican primary for Montana's 2nd Congressional District underpins trader consensus pricing a GOP hold at 91.5%, reflecting the district's R+15 Cook Partisan Voter Index and Downing's 2024 general election win by 66%. Three Democrats—Sam Lux, Brian Miller, and Jonathan Windy Boy—vie in their primary, but forecasters rate the seat Solid or Safe Republican amid historical incumbent retention rates exceeding 95% in such districts. Recent ballot certification post-March filing deadline solidified the field, with no major GOP challengers emerging. Challenges could arise from a scandal targeting Downing, a Democratic primary winner with unexpected fundraising surge, or a national midterm wave, though base rates suggest low likelihood before the November 3 general election.
Experimental AI-generated summary referencing Polymarket data · Updated



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