As Wisconsin heads toward its gubernatorial election, the state's law enforcement has become a focal point in a national battle over immigration enforcement that raises questions about local police autonomy, federal overreach and accountability.
Republican nominee Tom Tiffany said during a Wednesday debate on WISN-TV that he intends to mandate Wisconsin's sheriffs and county law enforcement honor federal immigration detainers issued by Immigration and Customs Enforcement. When asked if such cooperation should be required by law, Tiffany said yes.
Democratic Milwaukee County Executive David Crowley stopped short of endorsing a blanket prohibition on ICE cooperation but outlined what he called essential guardrails: barring local law enforcement from signing formal contracts with federal immigration authorities, requiring judicial warrants before ICE agents can enter jails or prisons, and prohibiting masked enforcement operations.
"We need to make sure that we're protecting people's civil liberties," Crowley said.
The debate reflects a tension that has intensified since President Donald Trump took office in January 2025. Trump has made mass deportation enforcement central to his administration's agenda, pressuring state and local authorities to support federal immigration policy.
Wisconsin offers a case study of this friction. Twenty county law enforcement agencies across the state currently participate in ICE's 287(g) program, a decades-old initiative that designates certain local officers to perform immigration enforcement functions. Tiffany's proposal would go further, requiring all sheriffs to cooperate regardless of existing agreements or local policy.
ICE arrests in Wisconsin have reached historically elevated levels since Trump resumed office. Between January 2025 and the most recent available reporting period, more than 2,100 individuals were detained by ICE within the state, a dramatic spike reflecting the administration's stated commitment to aggressive deportation enforcement.
The acceleration has not occurred in isolation. In New York, Trump has publicly criticized Governor Kathy Hochul over state-level restrictions on ICE cooperation. Fifteen New York sheriffs have filed a lawsuit challenging the state's ban on formal partnerships with ICE, arguing the prohibition strips them of tools to manage jails and county systems.
The dynamics across multiple states expose underlying questions about federalism and the proper relationship between local law enforcement and federal immigration authorities. When a governor or county executive refuses to authorize ICE cooperation, are they obstructing legitimate federal enforcement or protecting citizens' due process rights?
In Wisconsin, the issue has cascaded beyond the gubernatorial race. Sheriffs' races in Sauk and Winnebago counties have begun surfacing ICE cooperation as a campaign issue.
Crowley's specific proposals would impose meaningful procedural obstacles to swift immigration detention. Requiring judicial warrants before ICE agents access county jails would force federal agents to navigate state judicial systems. Prohibiting masked enforcement operations addresses a documented practice in which ICE agents have conducted raids while wearing face coverings, a tactic civil liberties organizations have criticized as obscuring accountability. Eliminating formal contracts between local law enforcement and ICE would sever the 287(g) partnerships currently in place.
Tiffany's mandate approach would centralize authority at the state level and eliminate local discretion. A gubernatorial order or statute requiring blanket ICE cooperation would subordinate sheriffs' operational independence to state policy while expanding federal enforcement capacity. Sheriffs would lose the ability to make decisions about jail space, personnel deployment and local community relations based on their counties' specific circumstances.
Public records on these enforcement operations remain sparse. Neither state nor federal agencies have released comprehensive data on how many detainers ICE issues within Wisconsin, how many sheriffs honor them, or what outcomes result from detentions. This informational gap makes it difficult for voters to evaluate the consequences of either candidate's position.
Meanwhile, federal guidance on these matters has been inconsistent. The Trump administration has issued directives pressuring local cooperation, yet the legal obligations of counties to honor federal detainers remain ambiguous in many states.
As Wisconsin voters prepare to cast ballots, they should recognize that the choice between Tiffany and Crowley represents a choice about where power over local policing should reside—with county sheriffs exercising judgment in their communities or with state and federal authorities. Both candidates agree that individuals convicted of crimes should face deportation. What separates them is fundamentally about accountability structures, local autonomy and the degree to which Wisconsin's law enforcement should be reorganized to serve federal immigration priorities.
