The voting rights act constrained what legislatures could do to curtail equal voting protections for our citizens. To suggest that this type of regulation isn't possible stands in the face of hundreds of years of precedent.

The constitution also holds up the judiciary as a co-equal branch to legislatures that can hold them in check if they step on the constitutionally-protected rights of our citizens. Discarding someone's vote because of a clerical error, when a postmark fulfills the intent and purpose of the hand-written date is fucking stupid, and suggests that dogmatic reading of one part of the constitution is somehow more important than an individual's, or in this case hundreds of individuals' right to vote.