Bush, Out of Office, Could Oppose Inquiries
By CHARLIE SAVAGE
WASHINGTON — When a Congressional committee subpoenaed Harry S. Truman in 1953, nearly a year after he left office, he made a startling claim: Even though he was no longer president, the Constitution still empowered him to block subpoenas.

“If the doctrine of separation of powers and the independence of the presidency is to have any validity at all, it must be equally applicable to a president after his term of office has expired,â€