u.s. supreme court monday hear arguments challenge bring texas state president barack obama executive action immigration eight justices confront series legal question begin whether texas state challengers even ground bring case obama november 2014 order affect immigrants country illegally whose children u.s. citizens lawful permanent residents unite state since children look key legal question case bring case challengers must first demonstrate legal stand arise injury negative consequences case mean state need show would hurt obama administration deferral deportation immigrant parent children deep tie unite state country illegally state texas take lead lawsuit obama administration block president action texas assert stand largely expect financial cost state process temporary driver license illegal immigrants new authorization live unite state texas subsidize cost process driver license contend obama action would cost millions dollars obama administration reject basis stand file suit assert cost incidental could avoid state obama administration lawyers say texas could eliminate subsidies driver license eliminate harm claim state majority justices find texas lack sufficient injury sue case unite state v. texas end obama administration win rule-making requirements justices agree texas stand bring case would consider whether deferred-deportation policies part obama action violate rule-making requirements federal law call administrative procedure act law federal agencies typically must issue general notice propose rule give interest party chance comment obama administration lawyers say defer deportation practice bind rule subject administrative procedure act rather characterize policies outgrowth u.s. department homeland security discretion determine deportation priorities administration contend homeland security secretary able focus department limit resources deport serious criminals secure border also question whether defer deportation violate dictate u.s. constitution presidents must take care faithfully execute nation laws texas state bring lawsuit say obama take executive action bypass congress cross line congress charge decide lawful unlawful immigrant obama administration say faithfully execute authority determine priorities immigration law factbox legal issue supreme court immigration case