phoenix u.s. department justice launch investigation handle last month presidential nominate contest arizona populous county cite complaints exceedingly long line poll place high level minority voters justice department civil right division ask maricopa county include phoenix provide detail information could help authorities determine whether march 22 primary election violate federal law include number locations poll decide justice department make request letter date april 1. letter follow call federal probe phoenix mayor greg stanton democrat immediately election call vote fiasco cite unacceptably disparate distribution poll locations officials call cost-cutting move maricopa county slash poll sit 60 200 2012. voters last month wait line five hours cast ballot well night sharply reduce number poll letter justice department cite report disproportional burden wait time ... areas substantial racial language minority populations justice department set april 22 deadline response follow election officials say decisions poll place base recent vote pattern increase number mail-in ballot karen osborne county elections director deny intent rob voters right say officials would comply justice department request request information osborne say brief interview monday reuters go gather information get together 22nd make public state formally certify election monday candidates five days contest result republican contest donald trump democratic contest hillary clinton attorney democrat bernie sanders say campaign consider challenge justice department civil right probe arizona election