There is nothing in the constitution that would prevent a state from βappointingβ its presidential electors by letting illegals vote. Nothing. Think about it, if the state doesnβt even have to let ANYONE vote, how and why would it not be allowed to let βillegalsβ vote if it cared to? Of course a state could allow illegals to vote in the βappointmentβ of the states members to the electoral college, because it could choose to appoint their electors by using a lottery.
If the state βelectedβ its βmost numerous branch of the legislatureβ by a ballot that was open to members of ISIS living in Syria as well as to citizens in the state, then guess what? THAT is how they would then be allowed to vote for their congressmen and senators. There is nothing else to it. The provision is straightforward. It is left entirely to the states to decide who is eligible to elect their congressmen and senators.