Drivers licenses from any state are accepted at airports and police departments across the United States. This move by Pritzker would force Texas and Florida to accept the "Real ID's" of illegal aliens from Illinois, even though it goes against the laws of Texas and Florida.
SCOTUS could stop this if they wanted to on equal protection grounds or on the same ruling the Court used against Arizona's SB1070 law, citing immigration policy as the exclusive domain of Congress.
-PJ
Texas and Florida can just stop accepting any Illinois driver’s license.