In California's 9th congressional district, incumbent Democrat Josh Harder and Republican challenger John McBride remain closely matched in trader assessments of the November general election margin following the June top-two primary. The district's Democratic lean, reflected in voter registration and prior results, supports expectations of a Democratic win, yet the precise margin hinges on turnout in key areas like San Joaquin County, campaign spending differentials, and any late national or local shifts affecting swing voters. Fundraising reports and primary vote shares underscore Harder's organizational edge, while McBride's advancement signals Republican persistence in a D+8 seat. Upcoming debates or endorsements could widen or narrow the gap before Election Day.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCA-09 House Election Margin of Victory
CA-09 House Election Margin of Victory
Democrat 5-10% 43%
Democrat 30%+ 31%
Democrat 25-30% 31%
Democrat 20-25% 31%
NEW
NEW
Nov 3, 2026
Democrat 30%+
31%
Democrat 25-30%
31%
Democrat 20-25%
31%
Democrat 15-20%
30%
Democrat 10-15%
30%
Democrat 5-10%
43%
Democrat 0-5%
30%
Republican Wins
30%
Democrat 5-10% 43%
Democrat 30%+ 31%
Democrat 25-30% 31%
Democrat 20-25% 31%
NEW
NEW
Nov 3, 2026
Democrat 30%+
$0 Vol.
31%
Democrat 25-30%
$0 Vol.
31%
Democrat 20-25%
$0 Vol.
31%
Democrat 15-20%
$0 Vol.
30%
Democrat 10-15%
$0 Vol.
30%
Democrat 5-10%
$0 Vol.
43%
Democrat 0-5%
$0 Vol.
30%
Republican Wins
$0 Vol.
30%
The 2026 CA-09 House election is currently expected to be held on November 3, 2026.
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
The options for "Democrat" and "Republican" refer to any representative of the Democratic Party and Republican Party, respectively, appearing on the general election ballot.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 CA-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.In California's 9th congressional district, incumbent Democrat Josh Harder and Republican challenger John McBride remain closely matched in trader assessments of the November general election margin following the June top-two primary. The district's Democratic lean, reflected in voter registration and prior results, supports expectations of a Democratic win, yet the precise margin hinges on turnout in key areas like San Joaquin County, campaign spending differentials, and any late national or local shifts affecting swing voters. Fundraising reports and primary vote shares underscore Harder's organizational edge, while McBride's advancement signals Republican persistence in a D+8 seat. Upcoming debates or endorsements could widen or narrow the gap before Election Day.
The 2026 CA-09 House election is currently expected to be held on November 3, 2026.
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
The options for "Democrat" and "Republican" refer to any representative of the Democratic Party and Republican Party, respectively, appearing on the general election ballot.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 CA-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
The options for "Democrat" and "Republican" refer to any representative of the Democratic Party and Republican Party, respectively, appearing on the general election ballot.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 CA-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Market Opened: Sep 2, 2026, 3:31 PM ET
Volume
$0End Date
Nov 3, 2026Market Opened
Sep 2, 2026, 3:31 PM ETResolver
0x69c47De9D...The 2026 CA-09 House election is currently expected to be held on November 3, 2026.
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
The options for "Democrat" and "Republican" refer to any representative of the Democratic Party and Republican Party, respectively, appearing on the general election ballot.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 CA-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.In California's 9th congressional district, incumbent Democrat Josh Harder and Republican challenger John McBride remain closely matched in trader assessments of the November general election margin following the June top-two primary. The district's Democratic lean, reflected in voter registration and prior results, supports expectations of a Democratic win, yet the precise margin hinges on turnout in key areas like San Joaquin County, campaign spending differentials, and any late national or local shifts affecting swing voters. Fundraising reports and primary vote shares underscore Harder's organizational edge, while McBride's advancement signals Republican persistence in a D+8 seat. Upcoming debates or endorsements could widen or narrow the gap before Election Day.
The 2026 CA-09 House election is currently expected to be held on November 3, 2026.
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
The options for "Democrat" and "Republican" refer to any representative of the Democratic Party and Republican Party, respectively, appearing on the general election ballot.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 CA-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
The options for "Democrat" and "Republican" refer to any representative of the Democratic Party and Republican Party, respectively, appearing on the general election ballot.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 CA-09 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Volume
$0End Date
Nov 3, 2026Market Opened
Sep 2, 2026, 3:31 PM ETResolver
0x69c47De9D...In California's 9th congressional district, incumbent Democrat Josh Harder and Republican challenger John McBride remain closely matched in trader assessments of the November general election margin following the June top-two primary. The district's Democratic lean, reflected in voter registration and prior results, supports expectations of a Democratic win, yet the precise margin hinges on turnout in key areas like San Joaquin County, campaign spending differentials, and any late national or local shifts affecting swing voters. Fundraising reports and primary vote shares underscore Harder's organizational edge, while McBride's advancement signals Republican persistence in a D+8 seat. Upcoming debates or endorsements could widen or narrow the gap before Election Day.
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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