states, organizations such as Demos, Project Vote, Campaign Legal Center and Lawyers' Committee for Civil Rights Under Law have filed lawsuits or sent pre-litigation letters. In some of these cases, this has resulted in changes in compliance. References External links ARIZONA ET AL. v. INTER TRIBAL COUNCIL OF ARIZONA, INC., ET AL. Senate roll call vote House roll call vote Full text of statute from United States Department of Justice The National Voter Registration Act of 1993: History, Implementation, and Effects Congressional Research Service Charles H. Wesley Education Foundation v. Cathy Cox. 1993 in American law Acts of the 103rd United States Congress History of voting rights in the United States Presidency of Bill Clinton United States federal election legislation Voter registration