Oops.
https://www.nytimes.com/2017/04/25/us/judge-blocks-trump-sanctuary-cities.html?_r=0
I may not be a Trump fan, or even a fan of the current immigration policy, but illegal immigration is, you know, illegal. How can a judge block the federal government from enforcing federal laws because a city refuses to cooperate? If the immigration laws are unconstitutional (they’re not, even if they’re not popular), block those. If the means of enforcing then is illegal, block that. But how can a judge block enforcement based entirely on political views? That’s not what the judicial branch is for. It is intended to enforce existing laws, not creating new laws. That’s what the legislative branch is for.
You might be right. I’ll admit I haven’t followed the legality of Sanctuary Cities very closely.