Arizona’s ridiculous case against the United States

After read­ing the request from Mari­co­pa Coun­ty for leave to file a late oppo­si­tion to the motion to dis­miss Arizona’s case, it strikes me that the coun­ty should be suing the state, not the fed­er­al gov­ern­ment.  If the coun­ty thinks state law is going to force state employ­ees to vio­late fed­er­al law, then that is a case that should be filed in a state court to have that por­tion of the law struck as a vio­la­tion of fed­er­al suprema­cy.  This case should not have been filed in fed­er­al court in the first place.  Any prob­lem with a state law should be brought before a state court before going to the fed­er­al courts with it.
 
Ari­zona v. Unit­ed States, No. 2:11-cv-01072-SRB
Unit­ed States Dis­trict Court, Dis­trict of Ari­zona (Phoenix Divi­sion)