So what's going on?
Petraeus, 60, told President Barack Obama of the affair on Thursday and offered to resign, a senior official told NBC News. Obama accepted his resignation in a phone call Friday afternoon.Needless to say, rumors are swirling. Bad judgment, or is there really more to the story?
"Yesterday afternoon, I went to the White House and asked the President to be allowed, for personal reasons, to resign from my position," Petraeus said in a letter to CIA colleagues. "After being married for over 37 years, I showed extremely poor judgment by engaging in an extramarital affair. Such behavior is unacceptable, both as a husband and as the leader of an organization such as ours."
"This afternoon, the President graciously accepted my resignation," Petraeus said in the letter.
Officials told The Associated Press that information about the affair surfaced over the course of an FBI probe. Meanwhile, law enforcement sources told NBC News that the FBI is currently investigating Petraeus' biographer for improperly trying to access his email. The sources emphasized that Petraeus was not under investigation and added that they did not believe the investigation into author Paula Broadwell would result in criminal charges.