Book: Petraeus almost quit over Afghan drawdown

Washington — A new book says general-turned-CIA director David Petraeus almost quit over President Barack Obama's decision to quickly draw down forces from Afghanistan.

The forthcoming biography says Petraeus ultimately decided that quitting would be a "selfish, grandstanding move," and that he must "salute and carry on."

Petraeus insider Paula Broadwell had an all-access pass to Petraeus for two years, covering him in the war zone and in Washington. Her book "All In: The Education of General David Petraeus" is a flattering account of his time in Afghanistan, sometimes at the expense of others.

In the book, the popular general also sends a strong signal that he has no desire to challenge his boss, Obama, for the White House.