The strong Democratic tilt of California's 18th congressional district, rated D+16 to D+20 on partisan voting indices, underpins trader consensus favoring the Democratic nominee in the November 3, 2026 general election. Incumbent Zoe Lofgren advanced from the June 2 top-two primary with 54.9% of the vote against Republican Shane Lewis at 29.3%, reflecting the district's consistent Democratic performance in recent cycles and Lofgren's long tenure and substantial fundraising lead. All major forecasters rate the seat as solid or safe Democratic. While the outcome could shift due to unforeseen national political swings, candidate-specific developments, or unusually low Democratic turnout, the structural advantages and primary results have kept the implied probability for a Democratic win near 96%.
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
$39,790 Vol.
$39,790 Vol.
Nov 2, 2026
Democratic Party
96%
Republican Party
3%
$39,790 Vol.
$39,790 Vol.
Nov 2, 2026
Democratic Party
$20,584 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 tilt of California's 18th congressional district, rated D+16 to D+20 on partisan voting indices, underpins trader consensus favoring the Democratic nominee in the November 3, 2026 general election. Incumbent Zoe Lofgren advanced from the June 2 top-two primary with 54.9% of the vote against Republican Shane Lewis at 29.3%, reflecting the district's consistent Democratic performance in recent cycles and Lofgren's long tenure and substantial fundraising lead. All major forecasters rate the seat as solid or safe Democratic. While the outcome could shift due to unforeseen national political swings, candidate-specific developments, or unusually low Democratic turnout, the structural advantages and primary results have kept the implied probability for a Democratic win near 96%.
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
$39,790End 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 tilt of California's 18th congressional district, rated D+16 to D+20 on partisan voting indices, underpins trader consensus favoring the Democratic nominee in the November 3, 2026 general election. Incumbent Zoe Lofgren advanced from the June 2 top-two primary with 54.9% of the vote against Republican Shane Lewis at 29.3%, reflecting the district's consistent Democratic performance in recent cycles and Lofgren's long tenure and substantial fundraising lead. All major forecasters rate the seat as solid or safe Democratic. While the outcome could shift due to unforeseen national political swings, candidate-specific developments, or unusually low Democratic turnout, the structural advantages and primary results have kept the implied probability for a Democratic win near 96%.
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
$39,790End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 12:08 AM ETResolver
0x2F5e3684c...The strong Democratic tilt of California's 18th congressional district, rated D+16 to D+20 on partisan voting indices, underpins trader consensus favoring the Democratic nominee in the November 3, 2026 general election. Incumbent Zoe Lofgren advanced from the June 2 top-two primary with 54.9% of the vote against Republican Shane Lewis at 29.3%, reflecting the district's consistent Democratic performance in recent cycles and Lofgren's long tenure and substantial fundraising lead. All major forecasters rate the seat as solid or safe Democratic. While the outcome could shift due to unforeseen national political swings, candidate-specific developments, or unusually low Democratic turnout, the structural advantages and primary results have kept the implied probability for a Democratic win near 96%.
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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