noon. another case involving sheriff joe arpaio in court today in downtown phoenix. this one is aimed at shutting down his immigration race. we have more from the courthouse. reporter: trying to put a stop to sheriff joe arpaio s workplace rain and county atty. bill montgomery prosecution of those cases that is what plaintiffs in this lawsuit clinton versus arpaio will be asking federal jud campbell to do today. some 80 of those raised over the years have been unconstitutional and have broke apart countless families. the plaintiffs will argue and today they will ask the judge to stop all of that permanently. spirit once again joe arpaio is in court spending taxpayer money to defend his unjust, unconstitutional policies. accepting his wrong, he is stepping up and fighting. reporter: lawyers will argue that joe arpaio has the constitutional right to carry out these rates. we will tell you how it plays out. i m mike watt case cbs 5 news. what are the odds he could end up