$7.8K
NOV 7, 2026
General Election
Voters choose the office holder.
Live Odds
Current prediction-market probability for the candidate, updated as market prices change.
Lupe Castillo is trading at 4% to win the IL-04 House winner? on prediction markets.
Candidate Overview
Key details about the candidate’s background, party, office sought and current campaign.
Current roleCandidate
PartyRepublican
Political ideologyConservative Republican
GenderFemale
LocationIllinois
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Notable personal detailsLupe Castillo is a Republican candidate for the U.S. House in Illinois’ 4th Congressional District and previously ran for the seat in 2024. She has served as a Republican committeeperson/committeewoman in Chicago’s 22nd Ward. She has operated a principal campaign committee, Lupe Castillo for Congress, registered with the FEC.
SourcesShowHide
Political Positions
Economy & Taxes
Lupe Castillo supports cutting spending and debt, eliminating wasteful government expenditures, and directing taxpayer dollars away from what she describes as corrupt or wasteful programs. She also backs lower taxes, including a 15% corporate tax rate, no taxes on overtime, tips, or Social Security benefits, and extending or increasing the Trump tax cuts.
Healthcare
Supports keeping Medicare and Medicaid, but wants Medicaid limited to temporary unemployment or disability and opposes broad taxpayer-funded healthcare expansion. Also says vaccination requirements should depend on the virus and rejects lifelong Medicaid entitlement.
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Immigration & Border
Lupe Castillo supports closing the border, requiring people to enter legally, and increasing vetting and border security. She also supports reinstating the Stay in Mexico policy and taking a hard line on asylum seekers and undocumented migrants.
Abortion & Reproductive Rights
Lupe Castillo supports abortion restrictions and says elective abortion should be allowed only in cases of rape, incest, or risk to the pregnant person’s life. She also says the federal government should not be involved and that each state should decide the issue.
Climate & Energy
Lupe Castillo’s documented energy stance emphasizes restoring oil pipeline access and offshore drilling as part of an economic plan. The available material does not show support for aggressive climate regulation or emissions-reduction policy.
Public Safety & Guns
Supports gun ownership rights and argues that law-abiding citizens should not face additional restrictions. Accepts background checks and three-day waiting periods, while opposing broader limits on gun ownership and supporting police enforcement against violent offenders.
Latest News
Lupe Castillo is in the news because the Illinois 4th Congressional District race may be getting more competitive. Independent candidates are organizing against Democratic nominee Patty García, and if several independents make the ballot and split the vote, it could help Castillo. The situation is still fluid, with some candidates saying they may drop out later depending on ballot access and campaign strength.
Endorsements
Endorsers of Lupe Castillo for IL-04 House winner?
Chicago Flips Red PAC
Political organization
Chicago Flips Red PAC endorsed Lupe Castillo for U.S. House District 4.
Illinois Right To Life Action
Public endorsement
Illinois Right To Life Action endorsed Lupe Castillo in its March 17, 2026 candidate ratings/endorsement guide.
New updates coming soon
We're monitoring and will update when new data impacts the race.
- Polls
- Fundraising