Iowa's 1st congressional district features a rematch between Republican incumbent Mariannette Miller-Meeks and Democrat Christina Bohannan, following Miller-Meeks's narrow 2024 victory by fewer than 800 votes. Recent July 2026 polling shows Bohannan ahead by 5 points, with an independent candidate drawing additional support that could fragment the vote. Both candidates cleared their June primaries by wide margins and have raised comparable sums exceeding $7 million each. Forecasters classify the seat as a toss-up or lean Democratic amid midterm dynamics, where the president's party has historically faced headwinds. Traders price the Democratic nominee as the clear favorite at 71.5 percent, reflecting the district's tight partisan balance and recent survey trends.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIA-01 House Election Winner
$27,498 Vol.
$27,498 Vol.
Democratic Party
72%
Republican Party
29%
$27,498 Vol.
$27,498 Vol.
Democratic Party
72%
Republican Party
29%
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: Dec 16, 2025, 11:57 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...Iowa's 1st congressional district features a rematch between Republican incumbent Mariannette Miller-Meeks and Democrat Christina Bohannan, following Miller-Meeks's narrow 2024 victory by fewer than 800 votes. Recent July 2026 polling shows Bohannan ahead by 5 points, with an independent candidate drawing additional support that could fragment the vote. Both candidates cleared their June primaries by wide margins and have raised comparable sums exceeding $7 million each. Forecasters classify the seat as a toss-up or lean Democratic amid midterm dynamics, where the president's party has historically faced headwinds. Traders price the Democratic nominee as the clear favorite at 71.5 percent, reflecting the district's tight partisan balance and recent survey trends.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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