Many in America's foreign policy community still have a positive view of David Petraeus and his legacy:
"Obviously David Petraeus is a fantastic, accomplished American hero."
Michael O'Hanlon is a senior fellow in foreign policy studies at the Brookings Institution.
He knows David Petraeus very well.
They attended graduate school together at Princeton, and more recently O'Hanlon had been working with Petraeus as a member of the CIA's external advisory board.
O'Hanlon says Petraeus "saved countless American lives" as a military commander.
Early summer — Jill Kelley complains to FBI friend of harassing emails — government official
Late summer — FBI establish emails come from Paula Broadwell, and that she has conducted an affair with General David Petraeus — government official
Oct. 21 — FBI interview Ms Broadwell — government official
Between Oct 22&29 — FBI interview Gen Petraeus — FBI official
Nov. 6 — FBI inform James Clapper, Director of National Intelligence, of Petraeus affair. Clapper speaks to Gen. Petraeus
Nov. 7 — Mr Clapper informs White House
Nov. 8 — White House informs President Obama. He speaks to Gen Petraeus
Nov. 9 — President Obama accepts Gen Petraeus' resignation. Congressional Committees informed