At least seven states, including Texas, Oklahoma and Iowa, have passed similar laws in recent years. All are blocked for now or have not yet taken effect.

Florida passed a law making it a crime for people in the U.S. illegally to enter the state. A federal judge said it's likely unconstitutional.

The U.S. Supreme Court won’t allow Florida to enforce its undocumented immigrant illegal entry and re-entry law while litigation continues in the case that led to a federal judge finding