BOSTON - AUGUST 29:  Former President Bill Clinton (L) talks with President Barack Obama (R) as Secretary of State Hillary Clinton (L-Rear) talks with former President George W. Bush (C-Rear) as former first lady Barbara Bush (R) looks on during funeral services for U.S. Senator Edward Kennedy at the Basilica of Our Lady of Perpetual Help August 29, 2009 in Boston, Massachusetts. Kennedy, youngest sibling to brothers President John F. Kennedy and Robert F. Kennedy, died of brain cancer August 25. Getty Images logo Getty Images 3 months ago

BOSTON - AUGUST 29: Former President Bill Clinton (L) talks with President Barack Obama (R) as Secretary of State Hillary Clinton (L-Rear) talks with former President George W. Bush (C-Rear) as former first lady Barbara Bush (R) looks on during funeral services for U.S. Senator Edward Kennedy at the Basilica of Our Lady of Perpetual Help August 29, 2009 in Boston, Massachusetts. Kennedy, youngest sibling to brothers President John F. Kennedy and Robert F. Kennedy, died of brain cancer August 25.