Interim chairman Doug DeVos, left, and former Gov. Ed Rendell, right, listen as former Florida Gov. Jeb Bush, center, speaks during a news conference, Thursday Dec. 6, 2012, in Philadel

 

              Interim chairman Doug DeVos, left, and former Gov. Ed Rendell, right, listen as former Florida Gov. Jeb Bush, center, speaks during a news conference, Thursday Dec. 6, 2012, in Philadel
Interim chairman Doug DeVos, left, and former Gov. Ed Rendell, right, listen as former Florida Gov. Jeb Bush, center, speaks during a news conference, Thursday Dec. 6, 2012, in Philadelphia, where it was announced Bush will follow Bill Clinton as chairman of the National Constitution Center. (AP Photo/ Joseph Kaczmarek)