" ▁as ▁an ▁" attribute ▁of ▁government ▁and ▁a ▁necessary ▁incident ▁of ▁so vere ig nt y ." ▁The ▁state ▁also ▁war ned ▁that ▁perm itting ▁the ▁federal ▁government ▁to ▁reg ulate ▁birds ▁could ▁set ▁a ▁dangerous ▁preced ent ▁for ▁government ▁to ▁bro aden ▁its ▁power ▁over ▁other ▁domains ▁for ▁which ▁it ▁had ▁no ▁enumer ated ▁constitution al ▁power . ▁ ▁Jud gment ▁In ▁an ▁opinion ▁author ed ▁by ▁Justice ▁Hol mes , ▁the ▁Supreme ▁Court ▁held ▁that ▁protection ▁of ▁a ▁state ' s ▁quasi - so ver eign ▁right ▁to ▁reg ulate ▁game ▁is ▁a ▁sufficient ▁juris dict ional ▁basis ▁for ▁that ▁State ▁to ▁en join ▁enfor cement ▁of ▁federal ▁reg ulations ▁over ▁the ▁subject ▁alleg ed ▁to ▁be ▁un const itution al . ▁ ▁However , ▁the ▁Supreme ▁Court ▁ruled ▁that ▁the ▁law ▁at ▁issue ▁was ▁constitution al , ▁not ing ▁that ▁Article ▁VI , ▁clause ▁ 2 , ▁sometimes ▁known ▁as ▁the ▁" sup rem acy ▁clause ," ▁makes ▁treat ies ▁the ▁" sup reme ▁law ▁of ▁the ▁land ," ▁thus ▁null ifying ▁any ▁state - level ▁concerns ▁with ▁regard ▁to ▁the ▁prov isions ▁of ▁any ▁treat y . ▁The ▁r uling ▁further ▁imp lied ▁that ▁treat y ▁prov isions ▁were ▁not ▁subject ▁to ▁question ing ▁by ▁the ▁states ▁under ▁the ▁process ▁of ▁jud icial ▁review . ▁▁ ▁In ▁the ▁course ▁of ▁his ▁judgment , ▁Hol mes ▁made ▁this ▁remark ▁on ▁the ▁nature ▁of ▁the ▁Constitution : ▁ ▁With ▁regard ▁to ▁that ▁we ▁may ▁add ▁that ▁when ▁we ▁are ▁dealing