A Gov can not send the guard to stop or prevent or even aid the Federal Border agents from their duties.
I’ve never heard this. Is this a law? Directive? Common practice?
I should have been clearer
a Gov can not order a guard to stop or prevent federal agents from doing what the federal gov ordered thefederal agents to do
and a Gov can not order state guard to arrest or detain illegals the way federal agents can. A POTUS could of course give the guard the authority to perform same duties.
The federal gov has authority over a national border which is what the southern border is.
Do you think a Gov can countermand orders given by the federal gov?