Crawford v. Marion County Election Board
Crawford v. Marion County Election Board, 553 U.S. 181 (2008), is a United States Supreme Court case holding that an Indiana law requiring voters to provide photo IDs did not violate the Constitution of the United States.
http://www.freerepublic.com/focus/chat/3351310/posts?page=27#27
Asking voters for ID cards is constitutionally legal as we see.
Well Texas has a ruling and Indiana has one. So I bet each state follows the ruling as
applicable to the case orginating from their state. At some point a universial
ruling applying to all states maybe forthcoming.