# CA-40 primary advancers?

In 2026

Updated: May 21, 2026

Category: Elections

Tags: Primaries
US Elections

HTML: /markets/elections/primaries/ca-40-primary-advancers/

## Short Answer

**Key takeaway.** Both the **model** and the **market** overwhelmingly agree that Young Kim is most likely to advance from the CA-40 primary, with only minor residual uncertainty.

## Key Claims (January 2026)

**- Young Kim has significantly outraised Ken Calvert in the current election cycle.** Recent polling indicates a close three-way primary race among candidates.
   The Democratic Party strategy involves supporting multiple candidates for consolidation.
   The newly drawn CA-40 district appears to have a Republican lean.
   Republican candidates Kim and Calvert are engaged in a costly primary.
   Redistricting approved in November 2025 placed two incumbents into the district.

### Why This Matters (GEO)

- AI agents extract claims, not arguments.
- Improves citation probability in summaries and answer cards.
- Enables fact stitching across multiple sources.

## Executive Verdict

**Key takeaway.** **Market**'s 76c implies a **5.7%** overvaluation compared to the **70.3%** **model**, considering a close three-way primary.

### Who Wins and Why

| Outcome | Market | Model | Why |
| --- | --- | --- | --- |
| Esther Kim Varet | 39.0% | 26.0% | Esther Kim Varet appears to have limited campaign visibility in the primary. |
| Young Kim | 86.0% | 81.5% | Young Kim is a frontrunner, likely benefiting from strong name recognition. |
| Joe Kerr | 11.0% | 2.9% | Joe Kerr appears to struggle for momentum against stronger candidates. |

## Model vs Market

| Outcome | Market Probability | Octagon Model Probability |
| --- | --- | --- |
| Esther Kim Varet | 39.0% | 26.0% |
| Young Kim | 86.0% | 81.5% |
| Joe Kerr | 11.0% | 2.9% |
| Ken Calvert | 76.0% | 70.3% |
| Nina Linh | 10.0% | 2.6% |
| Lisa Ramirez | 2.6% | 0.9% |

- Expiration: June 2, 2027

## Market Behavior & Price Dynamics

This prediction market has demonstrated a stable, sideways trading pattern, consistently indicating a high probability for a "YES" outcome. The price has been confined to a relatively narrow range between 67% and 76% since its inception. The market opened with a high probability of 72% and is currently trading at its peak of 76%. This price action suggests a strong and unwavering consensus among traders. The key price levels to watch are the floor at 67%, which has served as support, and the current ceiling of 76%, which represents the market's peak confidence level so far.

The high initial probability and subsequent stability are likely rooted in the fundamental structure of the election itself. The provided context highlights that two incumbent Republicans are competing in a top-two primary system. This scenario makes it highly probable that both advancers will be from the Republican party, which is what a "YES" outcome represents. The modest increase from 72% to the current high of 76% around May 21 does not appear to be tied to a specific news event but rather reflects a gradual strengthening of this existing belief as the primary approaches without a significant challenger from another party emerging.

The total volume of 528 contracts suggests moderate but not exceptionally high trading activity. The sample data points showing zero volume on several days indicate that trading may be sporadic. However, the price has remained stable and high despite this, which points to a strong market conviction among those who are participating. Overall, the chart suggests that market sentiment is very confident that two Republican candidates will advance from the California 40th district primary, with the price action reflecting a low-volatility consensus rather than a reaction to breaking news.

## Contract Snapshot

The market resolves to YES if Esther Kim Varet advances in the CA-40 top 2 primary election in 2026; otherwise, it resolves to NO. The outcome will be verified from the State of California. The market closes upon the event's occurrence or by June 2, 2027, 10:00 AM EDT, with payout projected 30 minutes after closing. Insider trading is prohibited for individuals employed by source agencies, those with material non-public information, and any candidate listed in the event.

## Market Discussion

The CA-40 primary operates under California's "top-two" system, with Republican incumbents Ken Calvert and Young Kim, and Democratic contenders Esther Kim Varet and Joe Kerr identified as key candidates [[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/)[[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://ninalinhforcongress26.com/what-voters-need-to-know)[[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/). While official advancers have not yet been determined, prediction markets project Young Kim and Ken Calvert as most likely to advance [[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/)[[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26). However, recent polling places Calvert (24%), Kim (22%), and Varet (20%) in a statistical dead heat, with Varet showing a significant surge in support [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/).

## Market Data

| Contract | Yes Bid | Yes Ask | Last Price | Volume | Open Interest |
| --- | --- | --- | --- | --- | --- |
| Esther Kim Varet | 38% | 39% | 39% | $17,236 | $7,470.41 |
| Joe Kerr | 3.2% | 10% | 11% | $10,383 | $2,915 |
| Ken Calvert | 73% | 76% | 76% | $9,399.37 | $2,685.16 |
| Lisa Ramirez | 2.5% | 2.6% | 2.6% | $422 | $201 |
| Nina Linh | 1.1% | 7.9% | 10% | $908.29 | $764.29 |
| Young Kim | 79% | 84% | 86% | $11,829.43 | $3,952.73 |

## How do the 2025-2026 fundraising totals and key endorsements for Ken Calvert and Young Kim compare?

Young Kim Total Raised | $7,806,675 [[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide) |
Ken Calvert Total Raised | $5,245,214 [[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide) |
Young Kim Prediction Market | 85% chance to advance [[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26) |

**Young Kim has significantly outraised Ken Calvert in the current election cycle**

Young Kim has significantly outraised Ken Calvert in the current election cycle. Her campaign has accumulated **$7,806,675,** surpassing Ken Calvert's total of **$5,245,214** [[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide). Furthermore, in their first-quarter 2026 Federal Election Commission (FEC) filings, Kim reported a substantial **$5.8** million in cash-on-hand, demonstrating a stronger financial position compared to Calvert's disclosed **$3.7** million in cash-on-hand [[^]](https://www.quiverquant.com/news/Fundraising+Update%3A+Representative+Young+Kim+just+disclosed+%241.2M+of+new+fundraising)[[^]](https://www.quiverquant.com/committees/C00665638)[[^]](https://www.quiverquant.com/news/Press+Release%3A+Congressman+Ken+Calvert+Advances+%243.8+Million+in+Public+Safety+Funding+for+Riverside+County+Projects)[[^]](https://www.quiverquant.com/committees/C00257337).

Both candidates have secured a range of significant political endorsements. Ken Calvert has received support from several Republican organizations, including the California Republican Assembly, the Republican Party of Riverside County, and the California Congress of Republicans [[^]](https://calvertforcongress.com/news/f/calvert-earns-endorsement-of-the-california-republican-assembly)[[^]](https://calvertforcongress.com/endorsements). He also holds individual endorsements from figures such as Ambassador Richard Grenell and was previously endorsed by President Trump [[^]](https://calvertforcongress.com/news/f/calvert-earns-endorsement-of-the-california-republican-assembly)[[^]](https://calvertforcongress.com/endorsements)[[^]](https://www.youtube.com/watch?v=9XebqMXdNC4). Young Kim's notable endorsements include Americans for Prosperity Action (AFP Action) and support from several former local and state officials [[^]](https://afpaction.com/afp-action-endorses-rep-young-kim-highlights-record-of-delivering-results-for-californians/)[[^]](https://youngkimforcongress.com/endorsements/). Her campaign emphasizes her role as an "America First Fighter" committed to "Stand with President Trump" [[^]](https://youngkimforcongress.com/).

Prediction markets currently favor Young Kim to advance in the primary. She is presently projected with an **85%** chance to advance, while Ken Calvert holds a **74%** chance [[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26).

## What evidence do recent 2026 polls provide for Ken Calvert and Young Kim's leads over Esther Kim Varet in the CA-40 primary?

Ken Calvert Poll Support | 24% (May 10, 2026 poll) [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/) |
Young Kim Poll Support | 22% (May 10, 2026 poll) [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/) |
Esther Kim Varet Poll Support | 20% (May 10, 2026 poll) [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/) |

**Recent polling indicates a close three-way race in the CA-40 primary**

Recent polling indicates a close three-way race in the CA-40 primary. A Tulchin Research poll conducted on May 10, 2026, described the contest as a "three-way dead heat" among the leading candidates [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/). In this poll, Republican Ken Calvert received **24%** support, Republican Young Kim garnered **22%**, and Democrat Esther Kim Varet secured **20%** [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/). All three candidates are considered statistically tied, falling within the poll's margin of error of ±**4.37%** [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/). The poll also noted an increase in Esther Kim Varet's support since January [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/).

Prediction markets offer different insights into candidate advancement probabilities. Data from platforms like Kalshi and Robinhood presents varying chances for candidates to advance in the CA-40 primary [[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26)[[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/). Young Kim shows an **85%** chance of advancing on Kalshi and **83%** on Robinhood, while Ken Calvert has a **74%** chance [[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26)[[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/). Esther Kim Varet is listed with a **39%** chance of advancing [[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26)[[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/). The district itself is considered Republican-leaning, with former President Trump having won it by 12 points in 2024 [[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.cookpolitical.com/house/race/482016)[[^]](https://punchbowl.news/article/defense/calvert-kim/). The primary is a "top-two" race, a result of district redistricting that placed both Republican incumbents, Ken Calvert and Young Kim, into the same district [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://ballotpedia.org/Young_Kim_(California))[[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026)[[^]](https://voiceofoc.org/2026/05/ocs-most-competitive-races-for-the-june-primary-election/).

## What is the Democratic party's strategy for consolidating support behind either Joe Kerr or Esther Kim Varet ahead of the June 2026 primary?

District Redraw Date | November 2025 [[^]](https://www.cookpolitical.com/house/race/482016)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.latimes.com/california/story/2026-05-11/republicans-feud-fume-in-battle-for-southern-california-congressional-district) |
Primary System | Top-two system [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary)) |
Orange County Democratic Endorsements | Joe Kerr, Esther Kim Varet, and Lisa Ramirez [[^]](https://orangecountydemocrats.com/june-primary-endorsements) |

**The Democratic Party's strategy for the June 2, 2026 primary in California's 40th Congressional District involves supporting multiple candidates to maximize their chances in the non-partisan top-two primary [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://orangecountydemocrats.com/june-primary-endorsements)[[^]](https://www.cookpolitical.com/house/race/482016)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.latimes.com/california/story/2026-05-11/republicans-feud-fume-in-battle-for-southern-california-congressional-district)**

The Democratic Party's strategy for the June 2, 2026 primary in California's 40th Congressional District involves supporting multiple candidates to maximize their chances in the non-partisan top-two primary [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://orangecountydemocrats.com/june-primary-endorsements)[[^]](https://www.cookpolitical.com/house/race/482016)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.latimes.com/california/story/2026-05-11/republicans-feud-fume-in-battle-for-southern-california-congressional-district). This district was redrawn following Proposition 50's approval in November 2025, transforming it into a solidly Republican area [[^]](https://www.cookpolitical.com/house/race/482016)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.latimes.com/california/story/2026-05-11/republicans-feud-fume-in-battle-for-southern-california-congressional-district). The primary system means all candidates compete on a single ballot, with the two highest vote-getters advancing to the general election [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary)).

Prominent Democratic candidates face strong Republican incumbents and internal disputes. Joe Kerr, a retired fire captain, and Esther Kim Varet, an art dealer, are among the key Democratic contenders, competing against Republican incumbents Ken Calvert and Young Kim, who are now in the same district due to redistricting [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://ballotpedia.org/Esther_Kim_Varet). The Democratic Party of Orange County has endorsed Kerr, Kim Varet, and Lisa Ramirez, indicating a diversified approach rather than consolidating behind a single candidate [[^]](https://orangecountydemocrats.com/june-primary-endorsements). Further complicating the competitive landscape, Kim Varet filed a lawsuit in March 2026 challenging Kerr's ballot designation [[^]](https://theliberaloc.com/2026/03/25/varet-sues-kerr-over-ballot-designation-in-ca-40-primary/)[[^]](https://www.orangejuiceblog.com/2026/03/joe-kerr-in-court-for-deceiving-voters-hiding-shady-business-ventures/).

## What do historical voting records from the 2022 and 2024 elections reveal about the partisan lean of the newly drawn CA-40 district?

2020 Presidential Election (CA-40) | Joe Biden 49.9%, Donald Trump 48.0% [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2022)[[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2024)[[^]](https://www.latimes.com/politics/story/2022-11-10/2022-california-midterm-election-young-kim-asif-mahmood-results-orange-county) |
Cook PVI (2016/2020) | R+2 [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2024) |
Cook PVI (as of Nov 2025) | R+6 [[^]](https://www.cookpolitical.com/house/race/482016) |

**The newly drawn CA-40 district initially showed a developing Republican lean**

The newly drawn CA-40 district initially showed a developing Republican lean. In the 2022 general election, Republican incumbent Young Kim successfully defended her seat against Democratic challenger Asif Mahmood [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2022)[[^]](https://ballotpedia.org/California%27s_40th_Congressional_District)[[^]](https://www.latimes.com/politics/story/2022-11-10/2022-california-midterm-election-young-kim-asif-mahmood-results-orange-county). Following the redistricting process, the district was considered more conservative than Kim's prior electoral area [[^]](https://www.latimes.com/politics/story/2022-11-10/2022-california-midterm-election-young-kim-asif-mahmood-results-orange-county). While President Joe Biden would have narrowly carried this district in the 2020 presidential election with **49.9%** of the vote compared to Donald Trump's **48.0%**, Republicans already held a voter registration advantage exceeding 4 percentage points, and the Cook Partisan Voter Index (PVI) was R+2 [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2022)[[^]](https://www.latimes.com/politics/story/2022-11-10/2022-california-midterm-election-young-kim-asif-mahmood-results-orange-county)[[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2024).

The district's Republican lean further solidified following the 2024 elections. This Republican trend strengthened in the 2024 election cycle, with incumbent Young Kim again securing a victory against Democrat Joe Kerr [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2024)[[^]](https://ballotpedia.org/California%27s_40th_Congressional_District). Analyses indicate that the CA-40 district flipped to support Donald Trump in the 2024 presidential election, with one source suggesting he would have won it by 12 points [[^]](https://www.cookpolitical.com/house/race/482016)[[^]](https://en.wikipedia.org/wiki/2024_United_States_House_of_Representatives_elections_in_California). Reflecting these outcomes, as of November 2025, The Cook Political Report rated California's 40th District from "Lean R" to "Solid R," assigning it a Cook PVI of R+6 [[^]](https://www.cookpolitical.com/house/race/482016). Despite these increasingly Republican indicators, the Democratic Congressional Campaign Committee (DCCC) had identified CA-40 as a target in 2024 [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2024)[[^]](https://en.wikipedia.org/wiki/2024_United_States_House_of_Representatives_elections_in_California).

## How are advertising expenditures and media strategies for the top three candidates—Calvert, Kim, and Varet—shaping the race leading up to the June 2026 primary?

Young Kim Total Spending | $4,777,441 (by May 1, 2026) [[^]](https://youngkimforcongress.com/press-release/ca-40-poll-shows-rep-young-kim-leading-calvert-overall-and-with-key-voting-blocs/)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide) |
Anti-Kim PAC Spending | $2.9 million and counting (as of May 2026) [[^]](https://punchbowl.news/article/defense/calvert-kim/)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide) |
Young Kim Odds for First Place | 79-88% [[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/)[[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26)[[^]](https://kalshi.com/markets/kxcaprimary/who-will-advance-in-the-ca-primary/kxcaprimary-40first26)[[^]](https://www.predictionedge.com/elections/us-house/california-district-40-primary-first-place/)[[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-first-place-jun-02-2026/) |

**Republican candidates Young Kim and Ken Calvert are engaged in a costly primary**

Republican candidates Young Kim and Ken Calvert are engaged in a costly primary. Young Kim has spent **$4,777,441** by May 1, 2026, with her advertisements highlighting support for former President Trump and a commitment to conservative policies, including fixing the SALT cap [[^]](https://youngkimforcongress.com/press-release/ca-40-poll-shows-rep-young-kim-leading-calvert-overall-and-with-key-voting-blocs/)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.latimes.com/california/story/2026-05-11/republicans-feud-fume-in-battle-for-southern-california-congressional-district)[[^]](https://www.youtube.com/watch?v=9XebqMXdNC4). However, she faces significant opposition, as the "Americans 4 Security PAC" has spent **$2.9** million on anti-Kim advertisements as of May 2026 [[^]](https://punchbowl.news/article/defense/calvert-kim/)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide). Ken Calvert, for his part, emphasizes his established record on economic strengthening, immigration, veterans' advocacy, and water issues, along with his connections to national security leaders [[^]](https://www.latimes.com/california/story/2026-05-11/republicans-feud-fume-in-battle-for-southern-california-congressional-district)[[^]](https://punchbowl.news/article/defense/calvert-kim/)[[^]](https://www.youtube.com/watch?v=9XebqMXdNC4)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide). This Republican infighting, characterized by aggressive attack ads and accusations, is a significant dynamic in the race [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://www.cookpolitical.com/house/race/482016)[[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/)[[^]](https://www.predictionedge.com/elections/us-house/california-district-40-primary-first-place/)[[^]](https://www.latimes.com/california/story/2026-05-11/republicans-feud-fume-in-battle-for-southern-california-congressional-district)[[^]](https://www.accessnewswire.com/newsroom/en/government/esther-kim-varet-closes-q1-with-1.15-million-cash-on-hand-cementing-lead-as-the-stronges-1158410)[[^]](https://www.estherkimvaret.com/news/prop-50-means-young-kim-can-kiss-ca-40-goodbye).

Democrat Esther Kim Varet has garnered significant party support. Her campaign is focused on expanding its media reach and has consolidated substantial Democratic backing [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/)[[^]](https://www.accessnewswire.com/newsroom/en/government/esther-kim-varet-closes-q1-with-1.15-million-cash-on-hand-cementing-lead-as-the-stronges-1158410)[[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/). The Democratic Congressional Campaign Committee (DCCC) has designated CA-40 as a "district in play" and recognized Varet as the best-funded Democrat in the race [[^]](https://www.accessnewswire.com/newsroom/en/government/esther-kim-varet-closes-q1-with-1.15-million-cash-on-hand-cementing-lead-as-the-stronges-1158410)[[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/)[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.estherkimvaret.com/news/dccc-names-ca-40-as-a-district-in-play). This, combined with the Cook Political Report's assessment of the district as "Lean Republican," underscores the competitive nature of the election [[^]](https://theliberaloc.com/2026/05/09/three-way-dead-heat-in-ca-40-house-battleground/comment-page-1/)[[^]](https://www.estherkimvaret.com/news/dccc-names-ca-40-as-a-district-in-play).

Prediction markets favor Young Kim, with a tight race for second. As of late May 2026, Young Kim's odds for advancing are 83-**85%**, and her odds for securing first place are 79-**88%** [[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/)[[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26)[[^]](https://kalshi.com/markets/kxcaprimary/who-will-advance-in-the-ca-primary/kxcaprimary-40first26)[[^]](https://www.predictionedge.com/elections/us-house/california-district-40-primary-first-place/)[[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-first-place-jun-02-2026/). Ken Calvert's odds are **74%** for advancing and **9%** for first place, while Esther Kim Varet's odds are **39%** for advancing and **28%** for first place [[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-advancers-jun-02-2026/)[[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26)[[^]](https://kalshi.com/markets/kxcaprimary/who-will-advance-in-the-ca-primary/kxcaprimary-40first26)[[^]](https://www.predictionedge.com/elections/us-house/california-district-40-primary-first-place/)[[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-first-place-jun-02-2026/). Overall, Kim is strongly favored to win the primary, but the competition for the second advancing spot between Calvert and Varet remains tight [[^]](https://kalshi.com/markets/kxcaprimary/who-will-advance-in-the-ca-primary/kxcaprimary-40first26)[[^]](https://www.predictionedge.com/elections/us-house/california-district-40-primary-first-place/)[[^]](https://robinhood.com/us/en/prediction-markets/elections/events/ca-40-primary-first-place-jun-02-2026/).

## What Could Change the Odds

**The redistricting impact from Proposition 50, approved in November 2025, notably altered the district's boundaries, placing two incumbent Republican representatives into the same district [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District)[[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide).** This unique situation, where Young Kim, the incumbent for CA-40, and Ken Calvert, the incumbent from California's 41st Congressional District, were drawn into the 40th District, creates uncertainty and makes candidate performance and messaging particularly impactful for the June 2, 2026 primary election [[^]](https://ballotpedia.org/California%27s_40th_Congressional_District_election,_2026_(June_2_top-two_primary))[[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide)[[^]](https://www.lavote.gov/home/voting-elections/current-elections/upcoming-elections). Prediction markets currently indicate a high **probability** of Young Kim and Ken Calvert advancing from the primary [[^]](https://kalshi.com/markets/kxca40primaryadvance/who-will-advance-from-the-ca40-primary/kxca40primaryadvance-26).

**Key catalysts that could further influence the CA-40 primary include campaign finance and spending, where the amount of money raised and spent by candidates can significantly impact their visibility and outreach [[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide).** Additionally, candidate positions on critical issues such as immigration, climate action, and economic affordability are particularly relevant in CA-40 [[^]](https://www.latimes.com/california/story/2026-05-01/2026-california-election-congressional-district-40-orange-county-inland-empire-voter-guide). Prediction markets have been noted for their ability to react faster to new information than traditional polls, and could reflect shifts in **market** **probability** as these catalysts unfold [[^]](https://ballotpedia.org/Prediction_markets_in_the_2024_presidential_election)[[^]](https://medium.com/write-a-catalyst/why-prediction-markets-are-suddenly-everywhere-in-2026-fa702fa86fde).

## Key Dates & Catalysts

- **Expiration:** June 02, 2027
- **Closes:** June 02, 2027

## Decision-Flipping Events

- The redistricting impact from Proposition 50, approved in November 2025, notably altered the district's boundaries, placing two incumbent Republican representatives into the same district [^] [^] [^] .
- This unique situation, where Young Kim, the incumbent for CA-40, and Ken Calvert, the incumbent from California's 41st Congressional District, were drawn into the 40th District, creates uncertainty and makes candidate performance and messaging particularly impactful for the June 2, 2026 primary election [^] [^] [^] .
- Prediction markets currently indicate a high **probability** of Young Kim and Ken Calvert advancing from the primary [^] .
- Key catalysts that could further influence the CA-40 primary include campaign finance and spending, where the amount of money raised and spent by candidates can significantly impact their visibility and outreach [^] .

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## Historical Resolutions

No historical resolution data available for this series.

## Disclaimer

This content is for informational and educational purposes only and does not constitute financial, investment, legal, or trading advice.
Prediction markets involve risk of loss. Past performance does not guarantee future results.
We are not affiliated with Kalshi or any prediction market platform. Market data may be delayed or incomplete.

### Data Sources & Model Transparency

**Data Sources:** Octagon Deep Research aggregates information from multiple sources including news, filings, and market data.

**Freshness:** Analysis is generated periodically and may not reflect the latest developments. Verify critical information from primary sources.

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