Research Note Researched

Illinois — Operation Midway Blitz vs. the Strongest Sanctuary Stack in the Country

The Pattern

Illinois is the purest example of sanctuary-vs-federal conflict in the detention pipeline. The state has among the strongest protections in the country:

Way Forward Act (2021): Bans county jails from contracting with ICE for detention
287(g) prohibition: Blanket ban on local law enforcement entering 287(g) agreements
Private detention ban: No private detention centers allowed
Courthouse protection law (Dec 2025): 1,000-foot buffer zone, $10K statutory damages for violations

In response, the Trump administration launched Operation Midway Blitz (Sep 9, 2025) — the largest targeted federal enforcement operation against a sanctuary city/state in history.

Operation Midway Blitz

Launched September 9, 2025, multi-agency surge covering all of Illinois + Lake County IN
DHS Secretary Noem personally traveled to Chicago when arrests passed 1,000 (Oct 2025)
By December 2025: 4,500+ arrests
Marshall Project analysis: most arrested did not have criminal records
ICE stated “we aren’t leaving Chicago” when Border Patrol pulled out (Nov 2025)
Illinois arrests among the nation’s highest in 2025

Sources:

Broadview: Processing Center Turned De Facto Prison

The Broadview ICE facility (Cook County), designed as a processing center for 236 adults with 12-hour max holds, was converted into de facto detention:

June 2025: ICE quietly expanded max hold from 12 to 72 hours
Fall 2025: People held for up to three weeks
Nov 2025: Federal Judge Gettleman called it “really a prison,” issued 15-point TRO requiring bedding, food, water, showers, hygiene, attorney access
Residents live 600 feet from facility; village estimated $700K+ in losses

This mirrors the warehouse conversion pattern — rather than building new detention (blocked by state law), ICE repurposed existing infrastructure beyond its design capacity and legal classification.

Sources:

Cook County SA: Charging Protocol for ICE Agents

On February 19, 2026, Cook County State’s Attorney Eileen O’Neill Burke implemented the Federal Immigration Enforcement Action Response Protocol — procedures for criminally prosecuting ICE agents who use excessive force. Developed after the Minneapolis ICE shootings.

This may be the most aggressive local government response to federal immigration enforcement in the country.

Source: Cook County SAO (Feb 19, 2026)

Courthouse Targeting

At least 5 ICE incidents at Cook County courthouses (Mar-Apr 2026), including the Domestic Violence Courthouse. This violates both a chief judge’s order and the state’s courthouse protection law. The Trump admin filed a lawsuit (Dec 29, 2025) to invalidate the law while ICE agents violate it in practice.

Source: NPR Illinois: Courthouse targeting (Apr 3, 2026)

Broadview 6: Political Prosecutions — CASE COLLAPSED (May 21, 2026)

Six activists indicted on federal felony conspiracy charges for surrounding an ICE vehicle during a Sept 26, 2025 protest. Of 50-100 protesters, only Democratic officeholders and activists were charged. Two charges dismissed (March 2026); felony conspiracy count dropped (Apr 29). On May 21, 2026, U.S. District Judge April Perry dismissed ALL remaining charges, canceling the misdemeanor trial set to start the following week, after grand jury transcripts revealed gross prosecutorial misconduct (improper “vouching,” excusing dissenting grand jurors, out-of-room contact, “abnormal redactions”). Perry was “shocked and sickened.” U.S. Attorney Andrew Boutros appeared in person to dismiss, then ordered “sweeping” grand jury reforms (May 27); lead AUSA Sheri Mecklenburg was fired (May 29) from her new Senate Judiciary Committee counsel job. The country’s flagship ICE-protest prosecution ended as a DOJ scandal — vindicating the selective/First Amendment-prosecution claim and now cited by other defendants (e.g., Don Lemon) seeking grand jury transcripts. See il-cook-broadview-six-federal-prosecution.

Source: Capitol News Illinois: ‘Broadview 6’ trial canceled as prosecutors acknowledge misconduct (May 2026); CBS Chicago: U.S. Attorney orders ‘sweeping’ grand jury reforms (May 27, 2026)

Special Prosecutor Denied (May 21, 2026)

On May 21, 2026, Cook County Circuit Judge Erica Reddick rejected the petition to appoint a special prosecutor for Operation Midway Blitz federal-agent conduct (after delaying the May 11 ruling to weigh the April 30 Accountability Commission report). She found State’s Attorney O’Neill Burke’s office remains the proper prosecuting authority. The coalition pivoted to pressuring local police (including CPD) to investigate ICE agents and refer charges; an Illinois State Police probe of a fatal ICE shooting in Franklin Park is the model. Meanwhile ICE kept making warrantless courthouse arrests — agents at four Cook County courthouses on May 7 — defying Chief Judge Evans’s October 2025 ban. See il-cook-courthouse-arrests-special-prosecutor.

Source: Chicago Sun-Times: Judge rejects special prosecutor (May 21, 2026)

Displacement Effect: Detention Without Facilities

Because Illinois blocks county detention, ICE transfers arrestees to:

Clay County Justice Center, Indiana
Dodge County Jail, Wisconsin
Hotels near O’Hare Airport

Illinois’s ban doesn’t stop detention — it displaces it across state lines to jurisdictions with fewer protections.

But detention also persists inside Illinois through the “ICE rider” loophole: at least 17 downstate county sheriffs (per an Oct 2025 WTTW FOIA investigation) hold ICE detainees via riders on their U.S. Marshals Service contracts, in apparent violation of the TRUST/Way Forward Acts. Removal has been voluntary and press-driven (e.g., Jackson County’s “overlooked checkbox,” Feb 2026), not AG-enforced. See illinois-ice-rider-county-jail-evasion.

Legislative Response

HB 5024 (passed House Apr 8, 72-35-2; full Senate passed it party-line in the early hours of June 1, 2026 — now on Pritzker’s desk, unsigned as of June 2): Prohibits new federal detention centers within 1,500 feet of homes, apartments, schools, day care, parks, forest preserves, public housing, cemeteries, or places of worship. Not retroactive — wouldn’t close Broadview but would block new siting. Senate sponsor Sen. Kimberly Lightford represents parts of Broadview. See il-statewide-hb5024-detention-location-ban.

Budget-Distressed Counties Blocked from Cooperating

Kankakee County: Lost ~$6.5M/year in ICE bed fees (Jerome Combs Detention Center). FY2026 budget required “serious belt-tightening.”
McHenry County: Lost ~$10M/year ICE contract. Sheriff publicly stated state law hinders ICE cooperation.

These represent the “would cooperate if they could” category — political pressure to repeal the Way Forward Act.

Key Heatmap Implications

Cook County should score very high — not for cooperation signals, but for federal enforcement intensity against sanctuary protections. The Broadview pattern (processing center → de facto prison) is a variant of the warehouse conversion pipeline that bypasses state law entirely.

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