Incumbent Jim Costa holds a commanding lead in California's 21st congressional district race due to his established position in a Central Valley seat with a modest Democratic lean, reflected in a D+5 partisan voting index and multiple nonpartisan ratings classifying it as Likely Democratic. Costa advanced comfortably from the June 2026 top-two primary with 42 percent of the vote against Kyle Kirkland's 26 percent, bolstered by superior fundraising exceeding $1.3 million compared to Kirkland's roughly $340,000. Trader consensus at 93.5 percent for Costa aligns with the district's recent history, including his 52.6 percent win in 2024. A realistic shift would require an unforeseen national political realignment, major late-breaking scandal, or health event affecting the incumbent before the November 3 general election.
基於Polymarket數據的AI實驗性摘要。這不是交易建議，也不影響該市場的結算方式。 · 更新於$27,331 交易量
$27,331 交易量
2026-11-03
吉姆·科斯塔（民主黨）
94%
凱爾·柯克蘭（共和黨）
7%
$27,331 交易量
$27,331 交易量
2026-11-03
吉姆·科斯塔（民主黨）
$15,163 交易量
94%
凱爾·柯克蘭（共和黨）
$12,168 交易量
7%
This market will resolve according to the party of the candidate who wins the CA-21 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/).Incumbent Jim Costa holds a commanding lead in California's 21st congressional district race due to his established position in a Central Valley seat with a modest Democratic lean, reflected in a D+5 partisan voting index and multiple nonpartisan ratings classifying it as Likely Democratic. Costa advanced comfortably from the June 2026 top-two primary with 42 percent of the vote against Kyle Kirkland's 26 percent, bolstered by superior fundraising exceeding $1.3 million compared to Kirkland's roughly $340,000. Trader consensus at 93.5 percent for Costa aligns with the district's recent history, including his 52.6 percent win in 2024. A realistic shift would require an unforeseen national political realignment, major late-breaking scandal, or health event affecting the incumbent before the November 3 general election.
This market will resolve according to the party of the candidate who wins the CA-21 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/).
市場開放時間： Jan 28, 2026, 12:08 AM ET
交易量
$27,331結束日期
2026-11-04市場開放時間
Jan 28, 2026, 12:08 AM ETThis market will resolve according to the party of the candidate who wins the CA-21 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/).Incumbent Jim Costa holds a commanding lead in California's 21st congressional district race due to his established position in a Central Valley seat with a modest Democratic lean, reflected in a D+5 partisan voting index and multiple nonpartisan ratings classifying it as Likely Democratic. Costa advanced comfortably from the June 2026 top-two primary with 42 percent of the vote against Kyle Kirkland's 26 percent, bolstered by superior fundraising exceeding $1.3 million compared to Kirkland's roughly $340,000. Trader consensus at 93.5 percent for Costa aligns with the district's recent history, including his 52.6 percent win in 2024. A realistic shift would require an unforeseen national political realignment, major late-breaking scandal, or health event affecting the incumbent before the November 3 general election.
This market will resolve according to the party of the candidate who wins the CA-21 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/).
交易量
$27,331結束日期
2026-11-04市場開放時間
Jan 28, 2026, 12:08 AM ETIncumbent Jim Costa holds a commanding lead in California's 21st congressional district race due to his established position in a Central Valley seat with a modest Democratic lean, reflected in a D+5 partisan voting index and multiple nonpartisan ratings classifying it as Likely Democratic. Costa advanced comfortably from the June 2026 top-two primary with 42 percent of the vote against Kyle Kirkland's 26 percent, bolstered by superior fundraising exceeding $1.3 million compared to Kirkland's roughly $340,000. Trader consensus at 93.5 percent for Costa aligns with the district's recent history, including his 52.6 percent win in 2024. A realistic shift would require an unforeseen national political realignment, major late-breaking scandal, or health event affecting the incumbent before the November 3 general election.
基於Polymarket數據的AI實驗性摘要。這不是交易建議，也不影響該市場的結算方式。 · 更新於
警惕外部連結哦。
警惕外部連結哦。
Frequently Asked Questions