United Steelworkers (850,000 members) and the United Mine Workers of America (86,000 members) endorse John Edwards for President.Some Previous Union Endorsements:
Professional Fire Fighters endorse Chris Dodd. (272,000 members)
Senator Clinton is endorsed by the International Association of Machinists and Aerospace Workers. (646,933 members)
 
Does anyone know whether it's Unite Here or SEIU that has most of the hotels in Las Vegas?