From the Crossroads of America Gunshows website. They are holding a gun show in Tucson on Jan 7th and 8th. The 8th is the anniversary of the Tucson mass shooting.
Q: Can I carry a loaded gun in the gun show? I have a Concealed Carry Permit.
A: We respectfully request that you do not bring any loaded firearm into the gun show. Safety is our Number One Priority, and a safe environment in the show can only be maintained if there are no loaded guns in the show.