▁of ▁an ▁act ▁of ▁Congress . ▁Virginia ▁thereby ▁assert ed ▁that ▁it ▁had ▁an ▁un review able ▁right ▁to ▁interpret ▁and ▁apply ▁( or ▁not ▁apply ) ▁federal ▁law ▁as ▁it ▁saw ▁fit . ▁ ▁The ▁Supreme ▁Court ▁re lied ▁on ▁Article ▁III , ▁Section ▁ 2 ▁of ▁the ▁Constitution , ▁which ▁provides ▁that ▁the ▁Supreme ▁Court ▁shall ▁have ▁juris diction ▁in ▁" all ▁C ases , ▁in ▁Law ▁and ▁Equ ity , ▁ar ising ▁under ▁this ▁Constitution , ▁the ▁La ws ▁of ▁the ▁United ▁States , ▁and ▁Tre aties ▁made , ▁or ▁which ▁shall ▁be ▁made , ▁under ▁their ▁Author ity ." ▁The ▁Court ▁found ▁that ▁the ▁Constitution ▁provides ▁no ▁exceptions ▁to ▁this ▁grant ▁of ▁juris diction ▁for ▁cases ▁ar ising ▁in ▁the ▁state ▁courts ▁or ▁for ▁cases ▁in ▁which ▁a ▁state ▁is ▁a ▁party . ▁Therefore , ▁under ▁the ▁language ▁of ▁the ▁Constitution , ▁all ▁cases ▁ar ising ▁under ▁federal ▁law ▁are ▁within ▁the ▁Constitution ' s ▁grant ▁of ▁app ell ate ▁juris diction . ▁This ▁conclusion ▁was ▁rein for ced , ▁said ▁the ▁Court , ▁by ▁the ▁Sup rem acy ▁Cla use ▁of ▁Article ▁VI , ▁which ▁makes ▁federal ▁law ▁superior ▁to ▁state ▁law . ▁ ▁The ▁Court ▁stated ▁that ▁if ▁state ▁court ▁dec isions ▁involving ▁federal ▁law ▁were ▁un review able ▁by ▁the ▁federal ▁courts , ▁then ▁each ▁state ▁could ▁prevent ▁the ▁federal ▁government ▁from ▁executing ▁federal ▁laws ▁within ▁that ▁state , ▁giving ▁each ▁state ▁v eto ▁power ▁over ▁federal ▁law . ▁The ▁Court ▁found ▁that ▁this ▁was ▁not