Via Daily Kos:
Last Thursday, March 31, 2011, a federal judge overturned laws enacted last year by the Illinois State Legislature which benefit the trade show and convention industries.This seems to mean that far-flung laws in WI, OH, IN, etc., are good for nothing because national law takes precedent. Which sounds awesome.
The Illinois judge in this case, Ronald Guzman, held that:
b) the National Labor Relations Act preempts the Legislature from dictating terms for unions.