President Barack Obama waves after Former President Bill Clinton addresses the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012.
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Journalist and talk show host Cristina Saralegui addresses the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012.
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President Barack Obama, right, joins former President Bill Clinton, left, on stage at the Democratic National Convention, Wednesday, Sept. 5, 2012, in Charlotte, N.C.
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A demonstrator shouts at police during a protest march, Wednesday, Sept. 5, 2012, in Charlotte, N.C., during the second day of the Democratic National Convention.
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Singer Jessica Sanchez performs at the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012. (AP Photo/Charles Dharapak)
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A protester is escorted out of the Timer Warner Arena by a police officer during the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012.
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Edgar "Baker" Phillips, of the U.S. Virgin Islands, wears a hat he made with a nod to Bill Clinton at the Time Warner Arena during the Democratic National Convention in Charlotte, N.C.
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Senate candidate from Massachusetts Elizabeth Warren addresses the Democratic National Convention in Charlotte, N.C.
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Former President Bill Clinton arrives to speak to delegates at the Democratic National Convention in Charlotte, N.C.
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Former President Bill Clinton addresses the Democratic National Convention in Charlotte, N.C.
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Former President Bill Clinton speaks to delegates at the Democratic National Convention in Charlotte, N.C.
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Singer Jessica Sanchez, center, performs at the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012.
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Sen. Barbara Mikulski of Maryland is welcomed to the podium by the democratic women of the Senate at the Democratic National Convention in Charlotte, N.C.
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The Democratic women of the Senate wave form the podium during the Democratic National Convention in Charlotte, N.C.
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Veteran Affairs Secretary Eric Shinseki addresses the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012. (AP Photo/J. Scott Applewhite)
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Sister Simone Campbell, Executive Director of the Roman Catholic Social Justice Organization addresses the Democratic National Convention in Charlotte, N.C.
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Wisconsin delegate Kevin Kopplin from Watertown takes a break outside of the convention floor during the Democratic National Convention in Charlotte, N.C.
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California Attorney General Kamala D. Harris addresses the Democratic National Convention in Charlotte, N.C.
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Journalist and talk show host Cristina Saralegui addresses the Democratic National Convention in Charlotte, N.C.
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Bob King, President of the UAW addresses the Democratic National Convention in Charlotte, N.C.
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Delegates cheer during the Democratic National Convention in Charlotte, N.C.
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Rep. Chris Van Hollen of Maryland addresses the Democratic National Convention in Charlotte, N.C.
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President Barack Obama hugs former President Bill Clinton on stage at the Democratic National Convention, Wednesday, Sept. 5, 2012, in Charlotte, N.C.
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Former President Bill Clinton addresses the Democratic National Convention in Charlotte, N.C., on Wednesday, Sept. 5, 2012. (AP Photo/Carolyn Kaster)
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