If not then go ahead and do whatever it takes to round up the criminals from our country annnnnnd.........deport them!!!
If they are federalized under Title 10 and fall under the command of the President, then posse comitatus would apply.
If they remain under command of their respective governors, then it's perfectly OK.
(Having said that, posse comitatus is just a statute. The Republican Congress could temporarily waive it by statute...and pigs could fly)
As Eisenhower took office, illegal immigrants were now crossing at the rate of about 3 million per year ...
Eisenhower hired Gen. Joseph May Swing to head the INS and with units of the US National Guard, began what history now views as a quasi-military operation to find and seize illegal immigrants