ANNAPOLIS, MD - MAY 22:   U.S. Sen. John McCain, his wife Cindy McCain (C) and mother Roberta McCain attend the U.S. Naval Academy graduation ceremony May 22, 2009 in Annapolis, Maryland. McCain, formerly a Naval pilot during the Viet Nam War, watched his son, John S. McCain IV receive his diploma from President Barack Obama, who defeated the senior McCain in the 2008 presidential election. Getty Images logo Getty Images 6 months ago

ANNAPOLIS, MD - MAY 22: U.S. Sen. John McCain, his wife Cindy McCain (C) and mother Roberta McCain attend the U.S. Naval Academy graduation ceremony May 22, 2009 in Annapolis, Maryland. McCain, formerly a Naval pilot during the Viet Nam War, watched his son, John S. McCain IV receive his diploma from President Barack Obama, who defeated the senior McCain in the 2008 presidential election.