George H.W. Bush (17 images)

Former President George H. Bush waves to delegates with wife Barbara during the opening night of the Republican National Convention on August 30, 2004 in New York City. The event, which will officially make President George W. Bush the Republican nominee for the 2004 national presidential race, has drawn anti-war and anti-administration protesters. ..(UPI Photo/GREG WHITESELL)..

Former President George H. W. Bush tips his hat after teeing off to start the inaugural AT&T National PGA event with Tiger Woods on July 4, 2007 at Congressional Country Club in Bethesda, Md. The proceeds of the golf tournament will benefit the Tiger Woods Foundation and local Washington, DC, based charities. (UPI Photo/Mark Goldman)

Former President George H.W. Bush, right, and Republican presidential candidate John McCain talk on the tarmac at Hobby Airport February 18, 2008 in Houston, Texas. Bush officially endorsed McCain in the race for U.S. President. (UPI Photo/Ian Halperin)

Former President George H. W. Bush officially endorses Republican presidential candidate John McCain at a news conference February 18, 2008 in Houston, Texas. (UPI Photo/Ian Halperin)