active — Madison and Dane County were placed on a DHS 'sanctuary jurisdictions' list in 2026 (later pulled from the DHS site); County Executive Melissa Agard disputed the listing. Madison Police issued a policy declining 287(g) agreements; Dane County Sheriff Kalvin Barrett ended SCAAP participation. DHS publicly pressured the county in May 2026 over a detainer. Dane is a non-cooperation county positioned opposite Waukesha and the 287(g) bloc.

active-litigation — Dodge County maintains a separate ICE intergovernmental agreement that includes transporting detained immigrants to and from the Broadview IL ICE Processing Center. Separately, the Wisconsin Supreme Court accepted an original action in December 2025 — Voces de la Frontera v. five WI county sheriffs — challenging all Wisconsin sheriffs' authority to hold individuals on ICE administrative detainers without judicial warrant. A ruling is expected by mid-2026 and would set binding statewide precedent affecting Dodge County's agreement.

active-litigation — Federal jury convicted Milwaukee Circuit Judge Hannah Dugan of felony obstruction (Dec 18, 2025) for directing an immigration target out a side door of her courtroom during a 2025 ICE courthouse operation; she resigned Jan 3, 2026. Her appeal argues a common-law privilege bars civil/ICE arrests in courthouses — a ruling that could bar ICE courthouse operations nationwide. ICE has continued courthouse arrests in Milwaukee (at least a fourth reported by early 2026), and the downtown DHS office is the busiest ICE arrest site in Wisconsin.

active — Waukesha County is a regional leader in Wisconsin's 287(g) spread, holding agreements under BOTH the Jail Enforcement and Warrant Service Officer models. Retiring Sheriff Eric Severson sought the authority early; all three 2026 sheriff candidates support continuing it. Waukesha is one of 19 of Wisconsin's 72 counties in 287(g) by early 2026 and sits at the center of ACLU opposition and the pending Wisconsin Supreme Court detainer case.