Don't see how 44 can get any traction, it's allready been litigated by SCOTUS, how can a State defy a lawful and binding adjudicated finding by SCOTUS? Would that constitute a breach of feducerary duty? In fact, failing to uphold a lawful exective order by any state/ public employee would also fall under that finding? How about we move to proceedings against those traitors! Let' charge Gov'ness Kate and her Nazi cronies, set a president and go after the rest of the bloody bunch!
Two words: Sanctuary Cities
States have already made it clear they can, and will, defy any federal law they don't agree with. Why should they bother complying when our government refuses to punish them for such violations? There should be governors and mayors around the country in prison right now and states' funding cut off, but our weak-azz POS government simply won't do it. No, we can't rely on them following federal law or even a SCOTUS ruling - it's already been made very clear that they simply don't give a sh!t. The government, when dealing with another government, is toothless. When dealing with us, well, that's another story.