Support sanctuary in your town. We do. Bring them to our open arms. The benefits are mutual, not zero-sum.
#CallTrumpsBluff
But what if his plan was to release undocumented people charged with violent crimes into sanctuary cities as political payback?
Surprise, look to the Roberts Sebelius decision. 10th A.
Sanctuary cities aren't states, but cities are the creatures of states. Trump would be using threat of violence to coerce state policy.
This case for coercion here is easy: the intended threat of increasing violence to punish local policies and pressure changes in state policy...
Thought experiment. What if Trump released violent felons...
The message would be similar: You adopt policies I disapprove of. I will punish you with increased risk of violence...
Sanctuary has this structure of fed vs. state/local implicating the 10th Amendment.
"But when 'pressure turns into compulsion,' legislation runs contrary to our system of federalism...That is true whether Congress directly commands a State to regulate or indirectly coerces a State to adopt a federal regulatory system as its own..."
"In this case, the financial 'inducement' Congress has chosen is much more than 'relatively mild encouragement'—it is a gun to the head."
In the case of Trump using the fear of actual violence as a political tool, Roberts's metaphor is even more apt.