Incumbent Rep. Andy Harris (R) dominates trader consensus at 81.5% implied probability to win Maryland's 1st Congressional District House seat, reflecting the district's Safe Republican status (R+8 partisan voter index per Cook Political Report) and his strong track record, including 59% in the last general election and 77% in his primary. Harris faces only nominal Republican primary challenger Christopher Bruneau ahead of the June 23 contest, while Democrats remain fragmented among four candidates—Victor Guidice, Dan Schwartz, George Walish, and Randi White—following the February 24 filing deadline and one withdrawal. No recent polls exist, but forecasters rate it Solid or Safe Republican, with no major developments in the past month altering the entrenched GOP advantage ahead of the November 3 general election.
Experimental AI-generated summary referencing Polymarket data · UpdatedMD-01 House Election Winner
MD-01 House Election Winner
Republican Party
82%
Democratic Party
19%
Republican Party
82%
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) dominates trader consensus at 81.5% implied probability to win Maryland's 1st Congressional District House seat, reflecting the district's Safe Republican status (R+8 partisan voter index per Cook Political Report) and his strong track record, including 59% in the last general election and 77% in his primary. Harris faces only nominal Republican primary challenger Christopher Bruneau ahead of the June 23 contest, while Democrats remain fragmented among four candidates—Victor Guidice, Dan Schwartz, George Walish, and Randi White—following the February 24 filing deadline and one withdrawal. No recent polls exist, but forecasters rate it Solid or Safe Republican, with no major developments in the past month altering the entrenched GOP advantage ahead of the November 3 general election.
Experimental AI-generated summary referencing Polymarket data · Updated

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