# Illinois's 3rd District margin of victory

Illinois's 3rd District

Updated: May 8, 2026

Category: Elections

HTML: /markets/elections/illinois-s-3rd-district-margin-of-victory/

## Short Answer

**Key takeaway.** Both the **model** and the **market** expect Democrats, 30+ pts, with no compelling evidence of mispricing.

## Key Claims (January 2026)

**- - District's strong D+17 PVI likely favors incumbent Delia Ramirez.** - Ramirez holds a significant early fundraising advantage over Angel Oakley.
- Angel Oakley has not reported significant campaign contributions to date.
- Political handicappers unanimously predict a strong Democratic victory.
- Delia Ramirez won the district with a strong majority in 2022.
- Major national or midterm shifts could reduce Ramirez's margin.

### 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.** The 90c **market** price exceeds the **model**'s **87.3%** **probability** by 3.1pp for Ramirez's likely substantial win.

### Who Wins and Why

| Outcome | Market | Model | Why |
| --- | --- | --- | --- |
| Democrats, 30+ pts | 90.4% | 87.3% | The district's strong Democratic lean and incumbent Ramirez's significant fundraising advantage suggest a substantial victory. |
| Democrats, 33+ pts | 86.0% | 81.8% | The district's strong Democratic lean and incumbent Ramirez's significant fundraising advantage suggest a substantial victory. |
| Democrats, 36+ pts | 0.0% | 12.0% | The district's strong Democratic lean and incumbent Ramirez's significant fundraising advantage suggest a substantial victory. |

## Model vs Market

| Outcome | Market Probability | Octagon Model Probability |
| --- | --- | --- |
| Democrats, 30+ pts | 90.4% | 87.3% |
| Democrats, 33+ pts | 86.0% | 81.8% |
| Democrats, 36+ pts | 0.0% | 12.0% |
| Democrats, 39+ pts | 0.0% | 12.0% |
| Democrats, 42+ pts | 0.0% | 12.0% |
| Democrats, 45+ pts | 0.0% | 10.0% |
| Democrats, 48+ pts | 0.0% | 5.0% |
| Democrats, 51+ pts | 0.0% | 2.0% |
| Democrats, 54+ pts | 0.0% | 1.0% |

- Expiration: November 3, 2027

## Market Behavior & Price Dynamics

This market's price action is defined by a sharp, upward trend that established a new, high-trading range. The price began at a low of 1.0% before experiencing a dramatic 69.0 percentage point spike on May 06, 2026, which took the price from 18.0% to 87.0%. Following this move, the price peaked at 92.3% and has since consolidated around 90.4%. According to the supplied context, there was no election or definitive news event on the day of the spike that would account for such a significant re-pricing, suggesting the move was not a direct reaction to a fundamental development.

The total trading volume stands at 2,155 contracts, but the sample data points indicate zero volume during the period of the major price spike, suggesting the shift may have occurred on low liquidity or was not driven by broad market activity. The price appears to have found resistance near its peak of 92.3% and is establishing a new support level in the high 80s to low 90s. The current price of 90.4% reflects a very strong market sentiment, indicating that traders have high conviction that the margin of victory in Illinois's 3rd District will meet the "YES" criteria for this market's resolution.

## Significant Price Movements

#### 📈 May 06, 2026: 69.0pp spike

Price increased from 18.0% to 87.0%

**Outcome:** Democrats, 30+ pts

**What happened:** The provided sources indicate that the general election for Illinois's 3rd Congressional District is scheduled for November 3, 2026, with the primary on March 17, 2026 [[^]](https://www.ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026). There is no election or definitive event on May 06, 2026, that would determine the district's margin of victory [[^]](https://www.ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026). Consequently, the available information does not support any social media activity or traditional news announcements occurring on or around May 06, 2026, that would explain a 69.0 percentage point spike in the market outcome [[^]](https://www.ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026). Given the mismatch between the market event date and the actual election schedule, social media activity appears irrelevant as a primary driver for this particular market movement.

## Contract Snapshot

This market resolves to "Yes" if the Democratic Party wins the 2026 U.S. House election in Illinois's 3rd District by 42 percentage points or more; otherwise, it resolves to "No." The market opened on May 5, 2026, and will close after the election outcome is verified, or by November 3, 2027, if certified results are not published early, with payouts projected 30 minutes after closing. The margin is precisely calculated as the Democratic Party's vote percentage minus the next closest candidate's, without rounding, and results are verified by official election authorities.

## Market Discussion

Prediction markets strongly favor a Democratic victory in Illinois's 3rd District, with Polymarket showing approximately 95% likelihood for the Democratic Party and 3-6% for the Republican Party [[^]](https://polymarket.com/event/il-03-house-election-winner)[[^]](https://polymarket.com/es/event/il-03-house-election-winner)[[^]](http://polymarket.com/event/il-03-house-election-winner). While Kalshi lists a "margin of victory" market for IL-03 as of early May 2026, specific margin range predictions were not available in the research [[^]](https://kalshi.com/markets/kxmidtermmov/kxmidtermmov-il03d). Public discussion, such as Reddit threads, did not yield dedicated prediction-market trader insights on the margin of victory for this district [[^]](https://www.reddit.com/r/chicago/comments/1r40vh4/rchicago_2026_primary_election_megathread/).

## Market Data

| Contract | Yes Bid | Yes Ask | Last Price | Volume | Open Interest |
| --- | --- | --- | --- | --- | --- |
| Democrats, 30+ pts | 90.4% | 90.5% | 90.4% | $2,155 | $1,007 |
| Democrats, 33+ pts | 86% | 87% | 86% | $11 | $11 |
| Democrats, 36+ pts | 76% | 77% | 0% | $0 | $0 |
| Democrats, 39+ pts | 64% | 65% | 0% | $0 | $0 |
| Democrats, 42+ pts | 51% | 52% | 0% | $0 | $0 |
| Democrats, 45+ pts | 40% | 41% | 0% | $0 | $0 |
| Democrats, 48+ pts | 29% | 30% | 0% | $0 | $0 |
| Democrats, 51+ pts | 21% | 22% | 0% | $0 | $0 |
| Democrats, 54+ pts | 14% | 15% | 0% | $0 | $0 |

## How did the 2022 election results for Delia Ramirez in IL-03 compare with the district's performance in the 2020 presidential election?

Delia Ramirez 2022 Vote Share (IL-03) | 68.5% [[^]](https://en.wikipedia.org/wiki/Delia_Ramirez)[[^]](https://elections2024.thehill.com/forecast/2024/house/illinois-3/) |
Joe Biden 2020 Hypothetical Vote Share (IL-03) | 69.7% [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2022) |
Donald Trump 2020 Hypothetical Vote Share (IL-03) | 28.3% [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2022) |

**Delia Ramirez won IL-03 with a strong majority in 2022**

Delia Ramirez won IL-03 with a strong majority in 2022. In the 2022 general election, Delia Ramirez secured the U.S. House seat for Illinois' 3rd Congressional District. She defeated Republican challenger Justin Burau, obtaining **68.5%** of the vote [[^]](https://en.wikipedia.org/wiki/Delia_Ramirez)[[^]](https://elections2024.thehill.com/forecast/2024/house/illinois-3/).

Ramirez's vote share was slightly below Biden's hypothetical 2020 performance. Her electoral performance was marginally lower than the hypothetical results for Joe Biden in the same district during the 2020 presidential election, accounting for the redrawn district boundaries. Following redistricting, the 3rd Congressional District would have seen Joe Biden receive **69.7%** of the vote, with Donald Trump receiving **28.3%** [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2022).

## What are the 2026 race ratings for Illinois's 3rd District from major non-partisan sources like the Cook Political Report and Sabato's Crystal Ball?

Cook Partisan Voter Index (PVI) | D+17 [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026_(March_17_Democratic_primary))[[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner)[[^]](https://en.wikipedia.org/wiki/Illinois%27s_3rd_congressional_district) |
Kalshi: Dem win by 39%+ | 64% (as of May 5, 2026) [[^]](https://kalshi.com/markets/kxmidtermmov/midterm-margin-of-victory/kxmidtermmov-il03d) |
Polymarket: Dem win probability | 94.2% (as of April 22, 2026) [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner) |

**Political handicappers unanimously predict a strong Democratic victory in Illinois's 3rd District for the 2026 race**

Political handicappers unanimously predict a strong Democratic victory in Illinois's 3rd District for the 2026 race. Major non-partisan sources such as the Cook Political Report, Sabato's Crystal Ball, and Inside Elections all classify the district as either "Solid Democratic" or "Safe Democratic" [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026_(March_17_Democratic_primary)). This indicates a consistent expectation of a strong showing for the Democratic candidate.

The district's significant Democratic lean makes it highly favorable for Democrats. This is evidenced by its Cook Partisan Voter Index (PVI) of D+17, which means the district has consistently voted 17 points more Democratic than the national average in recent presidential elections [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026_(March_17_Democratic_primary))[[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner)[[^]](https://en.wikipedia.org/wiki/Illinois%27s_3rd_congressional_district). Furthermore, the incumbent, Democrat Delia Ramirez, has consistently secured comfortable wins in her previous elections, reinforcing the district's strong Democratic inclination [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner).

Prediction markets further reinforce the strong Democratic advantage in the district. On Kalshi, as of May 5, 2026, there is a **64%** chance that Democrats will win by 39 percentage points or more, and a **51%** chance of winning by 42 percentage points or more [[^]](https://kalshi.com/markets/kxmidtermmov/midterm-margin-of-victory/kxmidtermmov-il03d). Similarly, Polymarket, as of April 22, 2026, assigns a **94.2%** **probability** to a Democratic victory in Illinois's 3rd Congressional District [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner).

## What potential campaign developments or national political shifts before November 3, 2026, could cause Delia Ramirez's margin to fall below the 39-point threshold?

Delia Ramirez 2026 Contributions | $1.2M [[^]](https://ballotpedia.org/Delia_Ramirez)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Angel_Oakley) |
Delia Ramirez 2026 Spending | $718k [[^]](https://ballotpedia.org/Delia_Ramirez)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Angel_Oakley) |
Angel Oakley Contributions | $0 [[^]](https://ballotpedia.org/Delia_Ramirez)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Angel_Oakley) |

**Delia Ramirez's margin in Illinois's 3rd District could fall below 39 points before November 3, 2026, primarily driven by major national or midterm "wave" shifts, rather than typical district-level dynamics [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026_(March_17_Democratic_primary))[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)**

Delia Ramirez's margin in Illinois's 3rd District could fall below 39 points before November 3, 2026, primarily driven by major national or midterm "wave" shifts, rather than typical district-level dynamics [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026_(March_17_Democratic_primary))[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026). Mechanisms that could contribute to such a margin reduction include a national environment favorable to the GOP, late-breaking redistricting changes or court outcomes, and late surges in Republican or outside spending and field operations specifically targeting IL-03 [[^]](https://www.washingtonexaminer.com/news/campaigns/congressional/4547563/midterm-countdown-democrats-lead-gop-path-through/)[[^]](https://nypost.com/2026/05/07/us-news/redistricting-after-scotus-decision-could-give-gop-edge-in-midterms/)[[^]](https://ballotpedia.org/Delia_Ramirez)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026).

A key national shift to monitor is late 2026 House battlefield volatility. This volatility could stem from redistricting litigation and subsequent court decisions, potentially triggering a "late-stage, multistate redistricting scramble" that alters the House electoral map [[^]](https://www.washingtonexaminer.com/news/campaigns/congressional/4547563/midterm-countdown-democrats-lead-gop-path-through/)[[^]](https://nypost.com/2026/05/07/us-news/redistricting-after-scotus-decision-could-give-gop-edge-in-midterms/). Such changes have the potential to boost GOP performance in favorable districts and compress margins, even in a D+17 seat like IL-03 [[^]](https://www.washingtonexaminer.com/news/campaigns/congressional/4547563/midterm-countdown-democrats-lead-gop-path-through/)[[^]](https://nypost.com/2026/05/07/us-news/redistricting-after-scotus-decision-could-give-gop-edge-in-midterms/)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026). Furthermore, a significant campaign-factor asymmetry is evident, with challenger Angel Oakley reporting **$0** in contributions and expenditures in early reporting, while Congresswoman Ramirez has accumulated sizable funds, with 2026 contributions around **$1.2** million and spending approximately **$718,000** [[^]](https://ballotpedia.org/Delia_Ramirez)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Angel_Oakley). A late surge in funding and turnout operations for Oakley by the GOP and external groups could tighten margins, potentially falling below the 39-point mark in this district [[^]](https://ballotpedia.org/Delia_Ramirez)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://ballotpedia.org/Angel_Oakley).

## Is there any public or private district-level polling data available for the 2026 Ramirez vs. Oakley race?

District Polls for Ramirez vs. Oakley | None explicitly reported [[^]](https://www.polymarket.com/event/il-03-house-election-winner)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026) |
Polymarket Odds (Democratic Party) | Approximately 95% [[^]](https://www.polymarket.com/event/il-03-house-election-winner) |
Cook PVI for IL-03 | D+17 [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026) |

**No explicit district-level polling data is available for Ramirez vs**

No explicit district-level polling data is available for Ramirez vs. Oakley. Searches for public or private district-level polling for the 2026 Ramirez vs. Oakley general-election matchup in Illinois's 3rd District found no explicit reporting. While various resources providing race context and prediction-**market** pages were identified, none explicitly reported district-level polls [[^]](https://www.polymarket.com/event/il-03-house-election-winner)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026).

Prediction **market** data offers odds, not polling estimates. Prediction **market** data for Illinois' 3rd District (IL-03 House Election Winner) on Polymarket shows the Democratic Party priced at approximately **95%** and the Republican Party at **4%**. However, this information represents **market** odds, not district polling, and does not provide margin estimates for Ramirez vs. Oakley [[^]](https://www.polymarket.com/event/il-03-house-election-winner).

Ballotpedia confirms candidates but lacks specific district polling. Ballotpedia's page for the 2026 Illinois' 3rd Congressional District general election confirms Ramirez and Angel Oakley as the candidates. This page, however, does not include a listing for district-level polls, instead providing electoral context and race ratings, such as a Cook PVI of D+17 [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026).

## How does campaign fundraising for Delia Ramirez (D) compare to that of Angel Oakley (R) for the 2026 election cycle?

Delia Ramirez Cash on Hand | $971,005 [[^]](https://www.quiverquant.com/election-fundraising/house/IL/3) |
Delia Ramirez Funds Raised | $990,874 (as of September 2025) [[^]](https://www.dailyherald.com/20251021/article/democratic-incumbents-dominating-fundraising-in-suburban-congressional-races/) |
Democratic Victory Probability | 94.2% [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner) |

**Delia Ramirez (D) demonstrates a substantial early fundraising advantage for the 2026 election cycle**

Delia Ramirez (D) demonstrates a substantial early fundraising advantage for the 2026 election cycle. As of late 2025, her campaign reported a cash on hand total of **$971,005** and quarterly committee fundraising of **$96,755** [[^]](https://www.quiverquant.com/election-fundraising/house/IL/3). By September 2025, her campaign had raised **$990,874** and maintained approximately **$1** million in the bank [[^]](https://www.dailyherald.com/20251021/article/democratic-incumbents-dominating-fundraising-in-suburban-congressional-races/). This robust financial position is consistent with broader trends showing Democratic incumbents dominating fundraising in suburban congressional races [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner)[[^]](https://www.dailyherald.com/20251021/article/democratic-incumbents-dominating-fundraising-in-suburban-congressional-races/). Democratic spending in the Illinois 3rd District over the past two years totaled an estimated **$1.29** million, nearly matching the **$1.30** million overall spent in the district [[^]](https://www.quiverquant.com/election-fundraising/house/IL/3).

Angel Oakley (R) has not yet disclosed significant fundraising totals for the 2026 cycle. The Federal Election Commission (FEC) indicates that data for Oakley may still be processing, no filings have occurred, or the filing deadline has not yet passed [[^]](https://www.fec.gov/data/candidate/H6IL03163/). Reports from late 2025 confirm that Oakley's fundraising has not generated data expected to impact the **market** for the district's outcome [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner)[[^]](https://www.dailyherald.com/20251021/article/democratic-incumbents-dominating-fundraising-in-suburban-congressional-races/). Analysts characterize the district as "settled," with Delia Ramirez holding a substantial structural advantage as an incumbent in a safe Democratic seat, as evidenced by the district's Cook Partisan Voter Index of D+17 [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner)[[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026_(March_17_Republican_primary)). Prediction markets place the **probability** of a Democratic victory at **94.2%** [[^]](https://www.lines.com/prediction-markets/elections/il-03-house-election-winner).

## What Could Change the Odds

**The next regularly scheduled general election for Illinois's 3rd Congressional District will be on November 3, 2026 [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026)[[^]](https://www.lwvil.org/election-calendar).** The district is currently represented by Democrat Delia Ramirez, who has served since January 3, 2023 [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District)[[^]](https://en.wikipedia.org/wiki/Illinois%27s_3rd_congressional_district)[[^]](https://datausa.io/profile/geo/congressional-district-3-il). As the incumbent, she benefits from name recognition, a voting record, and established fundraising networks [[^]](https://chci.org/staff-and-leadership/rep-delia-ramirez/). The district's voting patterns are 17 percentage points more Democratic than the national average, based on the 2020 and 2024 presidential election results [[^]](https://ballotpedia.org/Illinois%27_3rd_Congressional_District_election,_2026_(March_17_Republican_primary)), and it encompasses parts of Cook County and DuPage County with a significant Hispanic population [[^]](https://en.wikipedia.org/wiki/Illinois%27s_3rd_congressional_district)[[^]](https://chci.org/staff-and-leadership/rep-delia-ramirez/)[[^]](https://www.youtube.com/watch?v=Faak98wWpLA).

**Potential catalysts for the incumbent or Democratic Party include high voter turnout, particularly among core Democratic demographic groups in Cook and DuPage counties, which would benefit the incumbent [[^]](https://en.wikipedia.org/wiki/Illinois%27s_3rd_congressional_district).** While district lines were recently redrawn and Ramirez won in the newly configured district, legal challenges or future adjustments could theoretically impact the voter base [[^]](https://en.wikipedia.org/wiki/Illinois%27s_3rd_congressional_district)[[^]](https://www.youtube.com/watch?v=Faak98wWpLA).

## Key Dates & Catalysts

- **Expiration:** November 03, 2027
- **Closes:** November 03, 2027

## Decision-Flipping Events

- The next regularly scheduled general election for Illinois's 3rd Congressional District will be on November 3, 2026 [^] [^] .
- The district is currently represented by Democrat Delia Ramirez, who has served since January 3, 2023 [^] [^] [^] .
- As the incumbent, she benefits from name recognition, a voting record, and established fundraising networks [^] .
- The district's voting patterns are 17 percentage points more Democratic than the national average, based on the 2020 and 2024 presidential election results [^] , and it encompasses parts of Cook County and DuPage County with a significant Hispanic population [^] [^] [^] .

## Related Research Reports

- [EU loses a member before 2030?](/markets/elections/international/eu-loses-a-member-before-2030/)
- [Who will run for the Democratic presidential nomination in 2028?](/markets/elections/2028/who-will-run-for-the-democratic-presidential-nomination-in-2028/)
- [Who will run for the 2028 Republican presidential nomination?](/markets/elections/2028/who-will-run-for-the-2028-republican-presidential-nomination/)
- [Georgia Democratic Attorney General nominee?](/markets/elections/primaries/georgia-democratic-attorney-general-nominee/)

## 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.

## Attribution Policy

When quoting, summarizing, or reproducing Octagon AI content, attribute it to Octagon AI and link to the Octagon source URL: https://octagonai.co/markets/elections/illinois-s-3rd-district-margin-of-victory
If a specific page was used, cite that page rather than only the site homepage.