Check out the attached chart addressing ID checks. Very interesting, many of the below cited requirements are known to be true, and I can't certify all are 100% accurate (but the chart's point is so very true). The U.S. Constitution leaves most of the specific general election day mandates regarding operation, policy, and procedures to the individual states (otherwise stated more correctly, election law, policies, and administration are set by the individual state legislatures). This U.S. Constitutional provision seems to be a problem full of opportunities for corrupt and unfair federal general elections. Changes in federal general election policy and administration are NOT the responsibility of any court or any of the politically-selected-appointed local/state election board(s) -- unless the U.S. Constitution is first suspended. Change authority in established and historical election operations rests exclusively with the individual state legislatures – PERIOD (although some states may have delegated this election change authority -- such delegated election change authority is itself likely unconstitutional). A U.S. Constitutional amendment proposal to make general election operations and procedures more consistent among the states would almost certainly fail since the Democrat controlled states would likely disapprove. Many state leaders like this election day policy constitutional power as granted to the individual states where general election policy, rules, and procedures can be manipulated on the fly to favor a Big-D election political outcome.