Who Will Win California’s 12th Congressional District House Race?
California’s 12th Congressional District, anchored in Oakland and the East Bay, heads to voters in November 2026 to choose its next U.S. House representative. The seat sits in one of the most reliably Democratic areas of the state, making the real contest likely to unfold in the primary rather than the general election. Candidates are already positioning themselves ahead of the filing deadlines and the state’s top-two primary system.
Why Markets Are Watching
The district’s outcome matters for the balance of California’s Bay Area delegation and for which Democratic faction gains influence in Washington. Local policy priorities around housing, transit, and economic development in Oakland hinge on who represents the area. The race also tests how entrenched incumbency and name recognition hold up against newer challengers.
How Prediction Markets Frame the Race
The contract reduces a multi-candidate field into a single tradeable question: which individual ultimately secures the seat. Because the district leans heavily toward one party, the real signal traders extract is less about party control and more about which candidate consolidates support through the primary stages. Shifts in candidate positioning or late entrants can reshape the field the question is tracking.
Related terms
-
Democratic Party (United States) -
California -
Electoral district -
San Francisco Bay Area -
Oakland, California -
Anti-incumbency -
East Bay -
Lateefah Simon -
California's 12th congressional district
Total Volume
$40.4k
Kalshi $8.6k · Polymarket $31.8k
Leading Market
Lateefah Simon
Kalshi 97% · Polymarket 87%
Lateefah Simon Volume
$18.5k
Kalshi $4.2k · Polymarket $14.3k
Calculate Your Potential Return
- Kalshi(opens in a new tab) 7.0% fee
- Polymarket(opens in a new tab) 5.0% fee
| Market | Kalshi Yes | Kalshi Fee | Kalshi Payout | Polymarket Yes | Polymarket Fee | Polymarket Payout |
|---|---|---|---|---|---|---|
| Lateefah Simon | 98.0¢ | 7.0% |
|
99.0¢ | 5% |
|
| Jamie Moyer | 2.0¢ | 7.0% |
|
27.0¢ | 5% |
|
* Estimates if candidate wins. Actual returns may vary.
All Markets
Emerging News
In the News
Trial begins for former Oakland Mayor Sheng Thao in federal bribery case
PN Team • 3 weeks ago
Jury selection began this week in the federal corruption trial of former Oakland Mayor Sheng Thao, her partner Andre Jones, and recycling contractor executives David Duong and Andy Duong. Prosecutors allege the four, along with political operative Mario Juarez, orchestrated a scheme in which the Duongs financed a $75,000 campaign mailer to help elect Thao in 2022 and arranged a lucrative no-show job for Jones at Evolutionary Homes, a startup housing company. In return, Thao allegedly promised to steer city contracts to the Duongs' firm, California Waste Solutions, extend its recycling contract, and help the housing company secure a deal to sell units to the city.
All four defendants face bribery and honest services fraud conspiracy charges, with maximum sentences up to 20 years. They have pleaded not guilty. Juarez has already pleaded guilty and is expected to testify as the prosecution's star witness, along with former San Leandro councilman Bryan Azevedo, who also pleaded guilty. The case follows FBI raids in June 2024 and Thao's recall by Oakland voters that November. Prosecutors expect to present their case through mid-November.
Sources:
Sentiment
- Oakland, California Oakland is the site of the corruption scandal involving its former mayor, reflecting negatively on the city's political reputation.
- California California Waste Solutions is named as the company allegedly bribing Thao, a tangential factual reference to the state-named firm.
Related Events
Related Events
Politics
California Legislature passes bills restricting ICE hiring, cooperation, and use of shock gloves
PN Team • 2 months ago
California's Democratic-led Legislature approved a package of bills aimed at limiting federal immigration enforcement tactics in the state. One measure, authored by Assembly member Mark Gonzalez and dubbed the "Get the Feds Out" Act, would bar agents and contractors involved in immigration enforcement from future employment with state and local government agencies, including police departments, with limited exceptions. A related bill from Assemblymember Isaac Bryan would prohibit law enforcement officers from moonlighting as federal immigration contractors. Lawmakers also passed AB 2760, the nation's first law banning law enforcement from using electric-shock gloves, a response to a Trump administration plan to buy the devices for ICE agents; the Department of Homeland Security has said it won't comply, calling the measure unconstitutional.
Additional bills would bar arrests near courthouses, impose a 25% tax on private immigration detention operators' income to fund immigration services, and let individuals sue federal agents over alleged civil rights violations. Republicans and immigration-restriction groups criticized the measures as legally vulnerable and politically motivated. Gov. Gavin Newsom has until Sept. 30 to sign or veto the bills.
Sources:
Sentiment
- Donald Trump Trump's administration's plan to buy shock gloves for ICE agents is portrayed negatively, prompting the new ban.
- California California is portrayed as a proactive state government leading on immigration enforcement restrictions.
- Democratic Party (United States) The Democratic-led Legislature is credited with passing the immigration-restriction bills, a favorable framing for the party's base.
- Republican Party (United States) Republicans are noted criticizing the bills, a mildly negative framing as obstructive dissenters.
- Gavin Newsom Newsom is mentioned only as having authority to sign or veto the bills, a neutral factual reference.
- Governor of California The Governor's office is mentioned only as the body that must sign or veto the bills, a neutral procedural reference.
Related Events
Related Events
Local & State
Contra Costa County adopts policy limiting cooperation with ICE
PN Team • 2 months ago
Contra Costa County supervisors voted unanimously Tuesday to adopt a policy restricting county cooperation with U.S. Immigration and Customs Enforcement, aligning the county with other Bay Area jurisdictions. The policy bars county resources from being used to assist federal immigration operations unless a judicial warrant is presented, and directs staff to route enforcement requests to legal counsel or designated officials. It largely follows a model policy released by state Attorney General Rob Bonta under Senate Bill 580, which requires local governments to adopt similar protections by the start of 2027.
Debate centered on whether to enact the protections as a policy or a stronger ordinance; an ordinance motion failed on a split vote, with supporters arguing it would offer more durable protection and opponents favoring a policy's faster implementation and easier amendment. Other Bay Area counties, cities, and a school district already have comparable measures in place. County employees who violate the policy face disciplinary action.
Sources:
Sentiment
- Rob Bonta Bonta's model policy under SB 580 is credited as the basis for the county's new protections, portraying him as an influential policy leader.
- San Francisco Bay Area The Bay Area is mentioned as a region where similar protective measures already exist, a neutral contextual reference.
Related Events
Related Events
Elections
Harder and McBride face off again in California’s redrawn 9th District
PN Team • 1 month ago
Democratic Rep. Josh Harder faces Republican John McBride in the general election for California's 9th Congressional District, a rematch after McBride failed to advance past the primary in 2024. Harder, first elected in 2018 and representing the 9th District since 2022 redistricting, won 60% of the June primary vote to McBride's 23%.
The district, centered in the northern San Joaquin Valley with parts of Contra Costa County, was redrawn ahead of this cycle to favor Harder's reelection, trimming areas like Lodi and Stockton while adding Antioch. It was previously one of two California districts to back Donald Trump in 2024 while also electing a Democrat to Congress.
Harder, a former venture capitalist, has focused on eliminating the gas tax, promoting alternative energy projects, and lowering healthcare costs, including prescription drug prices. McBride, a longtime strength and conditioning coach and Central Valley resident, is emphasizing affordability, a Make America Healthy Again-aligned healthcare approach, agriculture support, and tougher crime penalties.
Sources:
Sentiment
- Donald Trump Trump is mentioned in passing regarding his 2024 performance in the district, a neutral-to-slightly-negative framing given the district's split voting pattern.
- Democratic Party (United States) Harder's Democratic affiliation is noted factually in a balanced electoral context.
- Stockton, California Stockton is mentioned neutrally as an area trimmed from the redrawn district.
- California California is mentioned as the state setting for the district without evaluative content.
- Republican Party (United States) McBride's Republican affiliation is mentioned factually without particular favor or criticism.
- San Joaquin Valley San Joaquin Valley is mentioned neutrally as the district's location.
- United States Congress Congress is referenced only as the office being contested.
Related Events
Related Events
Elections
California’s Prop. 4 would let taxpayer money fund political campaigns
PN Team • 2 weeks ago
California voters will decide in November whether to lift a 1988 ban that bars the state and most local governments from using public funds to finance political campaigns. Proposition 4 would authorize the state and most localities to establish public campaign financing systems for state and local races, similar to programs already used by seven charter cities including San Francisco, Berkeley and Oakland. Candidates would need to meet qualifying criteria, such as securing small-dollar donors or accepting spending caps, to receive funding as grants, matching funds or vouchers.
Supporters, including Gov. Gavin Newsom, the state Democratic Party and good-government groups, argue public financing counters the influence of big private money and could broaden the pool of candidates. Opponents, including Republican lawmakers and some newspaper editorial boards, say taxpayers shouldn't subsidize campaigns and criticize the measure for lacking enforcement specifics, since it exempts the state's campaign finance watchdog from overseeing local programs. Voters rejected similar measures in 2000 and 2010, and recent polling shows continued public skepticism toward Prop. 4.
Sources:
Sentiment
- Gavin Newsom Newsom is named as a prominent supporter of the measure, lending it credibility.
- Oakland, California Oakland is cited as a city with an existing public financing program, a mildly favorable reference.
- San Francisco San Francisco is cited as a city with an existing public financing program, a mildly favorable reference.
- Democratic Party (United States) The state Democratic Party is noted as a supporter of the measure, a neutral factual mention.
- Republican Party (United States) Republican lawmakers are cited as opponents criticizing the measure, a mild negative framing but largely factual.
- California California is the subject state of the ballot measure, mentioned factually throughout.
- Local government Local governments are mentioned as entities that could implement public financing systems, a neutral factual reference.
Related Events
Related Events
Elections
Wahab defeats AIPAC-backed Hernandez in California special election runoff
PN Team • 2 months ago
Progressive Aisha Wahab has won the special election runoff in California's 14th Congressional District, defeating moderate Melissa Hernandez to fill the remainder of former Rep. Eric Swalwell's term through January. The Associated Press called the race two days after polls closed, with Wahab taking 53.1% of the vote to Hernandez's 46.9%. The margin narrowed sharply from Wahab's double-digit primary lead after AIPAC's United Democracy Project and allied groups spent more than $2.5 million since August boosting Hernandez and attacking Wahab, largely on local issues like public safety rather than Israel policy. Wahab, a state senator, will become the first Afghan American in Congress, having earlier become the first Afghan American elected to any U.S. public office when she won a Hayward City Council seat in 2018; she said the result shows her district "cannot be bought."
Wahab has been critical of Israel's actions in Gaza but did not center the issue in her campaign; she has also championed housing affordability and previously wrote a caste-discrimination bill vetoed by Gov. Gavin Newsom. She drew support from labor unions, the state Democratic Party, and J Street, while Hernandez, a BART director, was backed by police unions, AIPAC-aligned groups, and several Jewish Democratic members of Congress. Wahab succeeds Swalwell, who resigned in April amid sexual assault and harassment allegations he denies; federal agents recently seized his devices at a San Francisco airport and searched his D.C. home as investigations continue. Wahab and Hernandez will face off again in November for a full term beginning in 2027, in a district reshaped by redistricting to include part of Hernandez's former mayoral base in Dublin.
Sources:
Sentiment
- Eric Swalwell Swalwell is described as having resigned amid sexual assault and harassment allegations, with federal agents seizing his devices, a strongly negative portrayal.
- Aisha Wahab Wahab is portrayed favorably as a barrier-breaking winner who resisted heavy outside spending and champions housing affordability.
- Democratic Party (United States) The state Democratic Party's support for Wahab is mentioned as part of her coalition, reflecting neutrally-to-mildly favorably on the party.
- Gavin Newsom Newsom is mentioned only for vetoing Wahab's caste-discrimination bill, a mildly negative factual detail.
- Governor of California Governor Newsom's office is referenced only in that he vetoed Wahab's caste-discrimination bill, a minor negative-tinged factual mention.
- California California is the setting of the election, mentioned factually without reputational implication.
- Israel Israel is mentioned only as a policy topic Wahab has criticized, without direct reputational framing of the country itself.
- United States Congress Congress is mentioned factually as the body Wahab will join, a neutral procedural reference.
Related Events
Related Events
Elections
AIPAC-backed spending fuels California special election between Wahab and Hernandez
PN Team • 2 months ago
Voters in California's 14th congressional district head to the polls Tuesday to fill the seat vacated by former Rep. Eric Swalwell, who resigned amid sexual assault allegations he denies. State Sen. Aisha Wahab, a progressive who has called for ending U.S. military aid to Israel, faces Melissa Hernandez, a moderate Democrat and Bay Area Rapid Transit Board president. With two Democrats on the ballot, the seat will stay in Democratic hands. Wahab led the June 16 primary by more than 20 points and remains the favorite, though Hernandez has more than doubled her in fundraising.
The race has drawn heavy outside spending tied to AIPAC's influence in Democratic primaries. AIPAC's United Democracy Project and allied group Bold America have together spent roughly $3.7 million opposing Wahab and backing Hernandez, part of about $4.1 million in total outside spending on the race. Wahab has drawn counter-support from pro-Palestinian PAC American Priorities and J Street Action Fund, which accused AIPAC of trying to "buy a Democratic primary." Wahab has emphasized affordability and civil rights, while Hernandez has focused on public safety and cost of living.
Sources:
Sentiment
- Eric Swalwell Described as having resigned amid sexual assault allegations, a clearly damaging reference.
- Aisha Wahab Portrayed as the progressive frontrunner leading in the primary despite facing heavy outside spending against her, a generally favorable framing.
- San Francisco Bay Area Mentioned as the region where Hernandez serves in transit governance, a neutral geographic detail.
- Democratic Party (United States) Noted as the shared party of both candidates in a factual, non-evaluative way.
- California Referenced as the state where the district and election are located, purely factual.
- Israel Mentioned in context of U.S. military aid debate, a neutral policy reference.
- United States Armed Forces Referenced only as the subject of Wahab's policy stance on ending aid, a neutral factual mention.
- United States Congress Mentioned as the body the seat belongs to, purely factual.
- United States House of Representatives The article concerns a race to fill a House seat, a neutral procedural reference.
Related Events
Related Events
Congress
Housing divide defines Democratic race to succeed Pelosi in San Francisco
PN Team • 2 months ago
The contest to succeed former House Speaker Nancy Pelosi in San Francisco has become a proxy fight over housing policy between two Democrats who each claim the progressive mantle. State Sen. Scott Wiener, an "abundance" and YIMBY advocate who authored permit-streamlining legislation, faces San Francisco Supervisor Connie Chan, who has Pelosi's endorsement and has opposed several major development and zoning changes in her district, citing tenant displacement and small-business concerns. Median one-bedroom rents in the city have topped $4,000, intensifying the debate over whether state intervention or local control best addresses the shortage.
The race also touches on Gaza policy, corporate PAC money, and campaign conduct, including a now-defunct AI chatbot mocking Chan that Wiener's campaign disavowed after backlash from Pelosi and other Democrats. Voters who backed a third primary candidate, Saikat Chakrabarti, remain a swing bloc heading into November, with the outcome likely to signal how San Francisco Democrats balance progressive identity against pro-housing "abundance" politics nationally.
Sources:
Sentiment
- Scott Wiener Wiener is tied to a mocking AI chatbot controversy that drew backlash before his campaign disavowed it, casting a negative light despite his policy advocacy.
- San Francisco San Francisco is depicted amid a contentious housing crisis and political divide, a mildly negative but largely factual portrayal.
- California California is mentioned only as the state context for legislation and governance.
- Democratic Party (United States) The Democratic Party is mentioned as the context of the primary race without specific praise or criticism.
- United States Congress Referenced only via the House Speaker context, a neutral factual mention.
- United States House of Representatives The seat being contested is a House seat, mentioned factually.
Related Events
Related Events
Elections
Marin GOP chair retracts dead-voter fraud claim but continues probing rolls
PN Team • 1 month ago
John Turnacliff, chairman of the Marin County Republicans, has publicly retracted his claim that 73 dead people voted in the November Proposition 50 special election, which redrew California's congressional maps to favor Democrats. Speaking at a Marin County Board of Supervisors meeting, Turnacliff apologized to the board and to Registrar of Voters Natalie Adona, saying he could not substantiate the claim after further research.
The county had earlier reviewed the list Turnacliff's group submitted and found at most five deceased individuals on it, with no record of votes cast in their names after death. After buying subscriptions to Ancestry.com and another records database, Turnacliff found many people on his list were actually alive and said he "jumped the gun." He said he apologized to maintain a workable relationship with the registrar's office, though he stressed his retraction was not an admission that voter fraud doesn't exist. Turnacliff, who has scrutinized Marin's voter rolls since the 2020 election, said his group intends to keep investigating other alleged irregularities.
Sources:
Sentiment
- Republican Party (United States) A Republican county chair's retraction of an unsubstantiated voter fraud claim reflects poorly on the party's credibility on this issue.
- Democratic Party (United States) Mentioned only as the beneficiary of the redrawn maps, without direct portrayal.
- Marin County, California Marin County is the setting for the controversy but is not itself portrayed negatively, aside from an administrative dispute.
- California California is mentioned only factually as the location of the redistricting measure.
Related Events
Related Events
Elections
California State Senate Race Becomes Costliest of the Cycle
PN Team • 1 day ago
A Los Angeles-area state Senate race between labor-backed West Hollywood City Councilmember John Erickson and business-supported media consultant Brian Goldsmith has become California's most expensive state Senate general election contest this cycle, driven by heavy outside spending. The district, covering Malibu, Santa Monica, the Pacific Palisades, Beverly Hills and West Hollywood, carries a 12-year term limit as both seek to succeed termed-out Sen. Ben Allen.
Business groups have targeted Erickson with attack spending, while tech-linked donors and Goldsmith's own personal funds have boosted his campaign; labor groups opposing Goldsmith have spent far less. Nancy Pelosi recently endorsed Goldsmith. Ads focus on affordability, housing, public safety and partisan loyalty, reflecting a broader business-labor struggle over California Democratic Party direction.
Sources:
Sentiment
- Democratic Party (United States) Referenced as the party whose internal business-labor struggle frames the race.
- California Referenced factually as the state where the race occurs.
Related Events
Related Events
Related Events
California’s 11th District House Race Heads Toward 2026 Showdown
Leading:
78%
Scott Wiener
Vol $3.6k
California’s 15th District House Race 2026
Leading:
98%
Kevin Mullin
Vol $11.2k
California’s 18th District House Race 2026
Leading:
98.5%
Zoe Lofgren
Vol $22.3k
California’s 14th District House Race 2026
Leading:
93.5%
Aisha Wahab
Vol $9.7k
California’s 38th Congressional District: Who Will Win the House Seat?
Leading:
98.5%
Hilda Solis
Vol $15.1k
California’s 10th District House Race 2026
Leading:
98.5%
Mark DeSaulnier
Vol $127.4k
California’s 1st Congressional District: 2026 House Race
Leading:
96.5%
Mike McGuire
Vol $5.2k
California’s 49th Congressional District: Who Will Win the House Seat
Leading:
98.5%
Mike Levin
Vol $0.00