President Bush smiles as he leaves the White House
President Bush, right, followed by White House Deputy Chief of Staff Karl Rove, and others, leaves the White House in Washington, Wednesday, Feb. 21, 2007, for a trip to Chattanooga, Tenn
President Bush, left, accompanied by Col. Paul R. Ackerley, commander, 316th Wing, and Installation Commander, waves at Andrews Air Force Base in Maryland, Wednesday, Feb. 21, 2007 as he walks towards Air Force One
President Bush waves at Andrews Air Force Base in Maryland, Wednesday, Feb. 21, 2007 prior to boarding Air Force One
President Bush steps off Air Force One in Chattanooga, Tenn
President Bush, accompanied by Dr. Tom Devlin, left, and Dr. Blaise Baxter, tours Erlanger Hospital in Chattanooga, Tenn., Wednesday, Feb. 21, 2007, before speaking about health care reform. 