The Election Administration and Voting Survey is used to report on the method by which the electorate votes on a whole, and specifically on overseas voters and the implementation of NVRA. The 2008 Survey is based on the reports of almost 134 million voters, of which 26 million were domestic absentee, one million were overseas absentee ballots, and 2.1 million ballots were provisional. Besides reporting how votes were cast voted, the survey also collected information about poll workers, voting technology.
Read the report here.