Hundreds of demonstrators descend on the Capitol in Harrisburg, Pa., on Tuesday, July 24, 2012, to protest a tough new voter ID law. (AP Photo/The Harrisburg Patriot-News, John C. Whitehead)

Photo by: John C. Whitehead

Hundreds of demonstrators descend on the Capitol in Harrisburg, Pa., on Tuesday, July 24, 2012, to protest a tough new voter ID law. (AP Photo/The Harrisburg Patriot-News, John C. Whitehead)