Incumbent Rep. Andy Harris (R) leads trader consensus at 76.5% implied probability to retain Maryland's 1st Congressional District seat in the November 3 general election, reflecting the district's R+8 partisan lean where Donald Trump won 57%-40% in 2024 and Harris secured 59% last cycle. Harris boasts dominant fundraising with $1.65 million cash on hand entering the June 23 primaries, facing only token Republican opposition from Christopher Bruneau. Democrats' 18.5% odds stem from a contested primary among Dan Schwartz (leading fundraiser at $118,000 cash), Victor Guidice, George Walish, and Randi White; Gov. Wes Moore's April 28 endorsement of Schwartz has boosted their nominee potential amid early April recruitment pushes, though structural barriers favor the incumbent. Primaries will clarify matchups.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMD-01 House Election Winner
MD-01 House Election Winner
Republican Party
77%
Democratic Party
19%
Republican Party
77%
Democratic Party
19%
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, 11:09 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 Rep. Andy Harris (R) leads trader consensus at 76.5% implied probability to retain Maryland's 1st Congressional District seat in the November 3 general election, reflecting the district's R+8 partisan lean where Donald Trump won 57%-40% in 2024 and Harris secured 59% last cycle. Harris boasts dominant fundraising with $1.65 million cash on hand entering the June 23 primaries, facing only token Republican opposition from Christopher Bruneau. Democrats' 18.5% odds stem from a contested primary among Dan Schwartz (leading fundraiser at $118,000 cash), Victor Guidice, George Walish, and Randi White; Gov. Wes Moore's April 28 endorsement of Schwartz has boosted their nominee potential amid early April recruitment pushes, though structural barriers favor the incumbent. Primaries will clarify matchups.
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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