In Oregon I believe it’s actually a law that police and officials cannot help ICE or other immigration agencies except under rare circumstances.

Edit: I just looked it up.

It is against Oregon law for state and local law enforcement or public agencies (state and local government offices) in the state of Oregon to participate directly or indirectly in immigration enforcement without a judicial warrant.

Source: https://www.doj.state.or.us/oregon-department-of-justice/civil-rights/sanctuary-promise/