The Brief A bunch of bills are running through the Michigan Senate that would limit how ICE operates in the state. A package of bills facing intense opposition is making their way through the Michigan Senate that would limit how ICE operates in Michigan. The package of bills would seek to limit what ICE can do and where they can go. "No state law, city ordinance or local policy can override federal law, so this is an exercise in futility here. What Runestad referenced was the supremacy clause of the United States Constitution, which says federal law, like federal immigration policy, is the highest authority in the US and overrides conflicting state laws.