My thoughts on what the Trump admin should do:
1- Secure the border as best as possible as quickly as possible
2- work cooperatively with states to deport criminal illegal ASAP. Prioritize any illegal who commits a crime, be it a violent crime, a property crime or something like hit & run, drunk driving, etc
3- states which don’t, or won’t, work w/Federal Gov on deporting criminals (sanctuary states) get federal funding cuts
4- continue to work with cooperating states to continue deportations from those cooperative states
5- non-cooperative states will economically collapse under the social & criminal costs of their sanctuary policies and the feds should point out to the media that it is a self proclaimed states rights issue and the states are collapsing because of their choices in their leadership
Elections have consequences. We need to plan for losing the house in 2 years. That is what usually happens, so set up the sanctuary states so that the citizens of those states revolt against crazy unpopular policies. But it will take an effort to hold $$$ back from sanctuary states (because they are violating federal law) and it needs to be constantly pointed out to the voters why it is happening