Democratic candidate for U.S. Senate Elizabeth Warren faces reporters during a campaign stop at a diner in Shrewsbury, Mass., Sunday, April 29, 2012. Warren and her opponent Republican U.S. Sen. Scott... more 
Democratic candidate for U.S. Senate Elizabeth Warren faces reporters during a campaign stop at a diner in Shrewsbury, Mass., Sunday, April 29, 2012. Warren and her opponent Republican U.S. Sen. Scott Brown have vowed to fight attack ads on television, radio and the Internet, but in their emailed appeals to supporters, the two routinely portray each other in the harshest light possible. (AP Photo/Steven Senne) less 
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Associated Press | Photo By Steven Senne
Mon, Apr 30, 2012 6:00 PM EDT