The strong Democratic lean of California's 18th congressional district, reflected in its D+16 partisan voting index and consistent "Solid Democratic" ratings from forecasters such as the Cook Political Report, underpins trader consensus around a 96% probability for the Democratic nominee. Long-serving incumbent Zoe Lofgren advanced comfortably through the June 2026 top-two primary, securing a majority against Republican challenger Shane Lewis and minor Democratic opponents. With the November 3 general election approaching, limited campaign activity and fundraising data showing the incumbent's substantial cash reserves have reinforced stability. A significant late-breaking development, such as an unforeseen scandal, health event, or dramatic national political shift, remains the primary scenario that could narrow the gap before ballots are cast.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCA-18 House Election Winner
CA-18 House Election Winner
$39,788 Vol.
$39,788 Vol.
Nov 3, 2026
Democratic Party
96%
Republican Party
3%
$39,788 Vol.
$39,788 Vol.
Nov 3, 2026
Democratic Party
$20,583 Vol.
96%
Republican Party
$19,206 Vol.
3%
This market will resolve according to the party of the candidate who wins the CA-18 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).The strong Democratic lean of California's 18th congressional district, reflected in its D+16 partisan voting index and consistent "Solid Democratic" ratings from forecasters such as the Cook Political Report, underpins trader consensus around a 96% probability for the Democratic nominee. Long-serving incumbent Zoe Lofgren advanced comfortably through the June 2026 top-two primary, securing a majority against Republican challenger Shane Lewis and minor Democratic opponents. With the November 3 general election approaching, limited campaign activity and fundraising data showing the incumbent's substantial cash reserves have reinforced stability. A significant late-breaking development, such as an unforeseen scandal, health event, or dramatic national political shift, remains the primary scenario that could narrow the gap before ballots are cast.
This market will resolve according to the party of the candidate who wins the CA-18 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).
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, 12:08 AM ET
Volume
$39,788End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 12:08 AM ETResolver
0x2F5e3684c...This market will resolve according to the party of the candidate who wins the CA-18 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).The strong Democratic lean of California's 18th congressional district, reflected in its D+16 partisan voting index and consistent "Solid Democratic" ratings from forecasters such as the Cook Political Report, underpins trader consensus around a 96% probability for the Democratic nominee. Long-serving incumbent Zoe Lofgren advanced comfortably through the June 2026 top-two primary, securing a majority against Republican challenger Shane Lewis and minor Democratic opponents. With the November 3 general election approaching, limited campaign activity and fundraising data showing the incumbent's substantial cash reserves have reinforced stability. A significant late-breaking development, such as an unforeseen scandal, health event, or dramatic national political shift, remains the primary scenario that could narrow the gap before ballots are cast.
This market will resolve according to the party of the candidate who wins the CA-18 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.
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/).
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/).
Volume
$39,788End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 12:08 AM ETResolver
0x2F5e3684c...The strong Democratic lean of California's 18th congressional district, reflected in its D+16 partisan voting index and consistent "Solid Democratic" ratings from forecasters such as the Cook Political Report, underpins trader consensus around a 96% probability for the Democratic nominee. Long-serving incumbent Zoe Lofgren advanced comfortably through the June 2026 top-two primary, securing a majority against Republican challenger Shane Lewis and minor Democratic opponents. With the November 3 general election approaching, limited campaign activity and fundraising data showing the incumbent's substantial cash reserves have reinforced stability. A significant late-breaking development, such as an unforeseen scandal, health event, or dramatic national political shift, remains the primary scenario that could narrow the gap before ballots are cast.
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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