Sen. Hillary Rodham Clinton, D-N.Y., center, clasps hands with former President Bill Clinton, right, as Chelsea Clinton, left, looks on as the three watch at the William J. Clinton Presidential Center during opening ceremonies in Little Rock, Ark., Thursday, Nov. 18, 2004. The $165 million glass-and-steel center will be the home to Clinton's library collection of more than 80 million presidential items.
Former President George H.W. Bush, left to right, First Lady Laura Bush, President George W. Bush, Chelsea, Sen. Hillary Rodham Clinton, and former President Bill Clinton watch the program from under umbrellas at the William J. Clinton Presidential Center during opening ceremonies in Little Rock, Ark., Thursday, Nov. 18, 2004.
U2's Bono makes a V sign backstage before his performance at the William J. Clinton Presidential Library, during opening ceremonies in Little Rock, Ark., Thursday, Nov. 18, 2004.
President George W. Bush, former President Bill Clinton, former President George H.W. Bush, and former President Jimmy Carter, walk from the William J. Clinton Presidential Center to the podium during opening ceremonies in Little Rock, Ark., Thursday, Nov. 18, 2004.
The image of the Clinton Library Building and an old bridge that is part of the property is reflected in a pool, in Little Rock, Ark.
The south end of the museum area of the Clinton Presidential Library.
The main gallery of the Clinton Presidential Library in Little Rock, Ark.
Water flows in a fountain in front of the Clinton Presidential Library building.
Saxophones and a portrait of Virginia Kelley, former President Bill Clinton's mother, top right, are among items displayed at the Clinton Presidential Library.
A replica of the Oval Office as it appeared during the Clinton adminstration is displayed at the Clinton Presidential Library.
Clinton campaign buttons are displayed at the Clinton Presidential Library.
A Bill Clinton doll with a saxophone sits on a shelf near books and a pillow in the Clinton Museum Store in downtown Little Rock, Ark.
Former President Bill Clinton picks up a shovel full of dirt at groundbreaking ceremonies for the Clinton Presidential Library Project in Little Rock, Ark., Dec. 5, 2001.
A tractor drives past the Choctaw train station on the grounds of the Clinton Library construction site Nov. 14, 2003.
The site of the Clinton Presidential Library, lower left, east of Interstate 30 in downtown Little Rock, Ark., is shown in this June 5, 2002, file photo.
Former President Bill Clinton, center, discusses a model of the Clinton Library and Policy Center building in Little Rock, Ark., as architects James Stewart Polshek, right, and Richard Olcott, left, both from the New York firm of Polskek and Partners, look on June 22, 2001.