States don't have a right to conduct elections. More specifically, State legislatures have 100% power to choose the state's electors according to the constitution. They choose to have a popular vote to that effect. The state executive branch, governors or secretaries of state, do not have the power to alter election laws, but they did. This effects other states in particularly with regard to the vice president who acts as a 51st senator. Executive state branches engaging in unconstitutional behavior that results in affecting the power of other states legislative representation certainly warrants a decision by the Supreme Court.