He died of a massive heart attack he died on January 22 ,1973 5 to 4 days after he left the white house
Richard Milhouse Nixon
Richard Nixon, Gerald Ford, Jimmy Carter, Ronald Reagan, George H.W. Bush, Bill Clinton, George W. Bush, and Barack Obama.
Lyndon Baines Johnson died on the afternoon January 22, 1973 in his bedroom of his beloved ranch.
He died of a heart attack.