Surely you jest.
Does the Constitution charge the Federal government with repelling that invasion?
Clearly yes.
Are ICE officers minimally invasive agents of that charge?
Obviously.
When rich leftists organize and fund sometimes violent protests and harassment of ICE officers and their families, does that justify the use of National Guard to protect them in their duties.
Quite rationally.
Can those guardsmen execute an arrest of violent "resistors" to that end?
Surely
If a State governor abets that harassment, is that governor violating the chain of command from the CIC?
Quite arguably.
Then how is any of that illegal? Trump should have issued an order to both Pritzger and Noisome and then could subsequently threaten arrest.
Where I think Trump is wrong is to use NG troops to enforce public safety. That is clearly a State function anywhere outside DC. It's a very bad precedent that opens us to government seizure of our firearms.
EVERY soldier, sailor and Marine surrounding Trump now has the AFFECT of Crooks, Routh and Robinson—ALL assassins!