Barbara Bush, right, wipes her eye as former President George W. Bush speaks at the dedication of the George W. Bush presidential library on the campus of Southern Methodist University in Dallas, Thursday, April 25, 2013. Also pictured left to right: former Secretary of State Condoleezza Rice, former Vice President Dick Cheney, daughter Jenna Bush Hager, and husband Henry Hager(AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

Barbara Bush, right, wipes her eye as former President George W. Bush speaks at the dedication of the George W. Bush presidential library on the campus of Southern Methodist University in Dallas, Thursday, April 25, 2013. Also pictured left to right: former Secretary of State Condoleezza Rice, former Vice President Dick Cheney, daughter Jenna Bush Hager, and husband Henry Hager(AP Photo/Charles Dharapak)