The more I think of voter ID laws and their potential to disenfranchise large swaths of people, the more I think the obvious solution is in the 14th amendment.
Representatives shall be apportioned among the several States according to their respective numbers, counting the whole number of persons in each State, excluding Indians not taxed. But when the right to vote at any election for the choice of electors for President and Vice-President of the United States, Representatives in Congress, the Executive and Judicial officers of a State, or the members of the Legislature thereof, is denied to any of the male inhabitants of such State, being twenty-one years of age, and citizens of the United States, or in any way abridged, except for participation in rebellion, or other crime, the basis of representation therein shall be reduced in the proportion which the number of such male citizens shall bear to the whole number of male citizens twenty-one years of age in such State.
With the 19th and 26th amendments, presumably that includes women and anyone 18-21. It seems to me that courts could do it now, but it’s probably better if Congress decides on a reasonable formula. It seems to me if states are going to disenfranchise their citizens, they should lose some representation.