America's former CIA director David Petraeus never shied away from the public eye before in times of crises. Now, he might not have a choice.
As details emerged about his extramarital affair with his biographer, Paula Broadwell, including a second woman who allegedly received threatening emails from the author, members of Congress said they wanted to know exactly when the now ex-CIA director and retired general popped up in an FBI inquiry, whether national security was compromised and why they weren't told sooner.
"We received no advanced notice. It was like a lightning bolt," said Democratic Sen. Dianne Feinstein, who heads the Senate Intelligence Committee.
A senior US military official identified the second woman as Jill Kelley, 37, who lives in Tampa, Florida, and serves as the State Department's liaison to the military's Joint Special Operations Command, where among other duties, secret drone missions are worked on.
The military official, who spoke on condition of anonymity because he was not authorized to publicly discuss the investigation, said Kelley had received harassing emails from Broadwell, which led the FBI to examine her email account and eventually discover her relationship with Petraeus.
A friend of Kelley and Petraeus, who also spoke on condition of anonymity, also said the two saw each other often, but the nature of their friendship was unclear.
Petraeus resigned while lawmakers still had questions about the September 11 attack on the US Consulate and CIA base in Benghazi, Libya, that killed four Americans, including US Ambassador Chris Stevens.
Lawmakers said it's possible that Petraeus will still be asked to appear on Capitol Hill to testify about what he knew about the US response to that incident.
Republican Peter King, chairman of the House Homeland Security Committee, said the circumstances of the FBI probe smacked of a cover-up by the White House.
"It seems this (the investigation) has been going on for several months and, yet, now it appears that they're saying that the FBI didn't realise until Election Day that General Petraeus was involved. It just doesn't add up," said King.
Petraeus, 60, quit Friday after acknowledging an extramarital relationship. He has been married 38 years to Holly Petraeus, with whom he has two adult children, including a son who led an infantry platoon in Afghanistan as an Army lieutenant.
Broadwell, a 40-year-old graduate of the US Military Academy at West Point and an Army Reserve officer, is married with two young sons.
Broadwell has not responded to multiple emails and phone messages. Attempts to reach Kelley were not immediately successful.
Petraeus' affair with Broadwell will be the subject of meetings on Wednesday involving congressional intelligence committee leaders, FBI deputy director Sean Joyce and CIA deputy director Michael Morell.
Petraeus had been scheduled to appear before the committees on Thursday (Friday NZT) to testify on what the CIA knew and what the agency told the White House before, during and after the attack in Benghazi. Republicans and some Democrats have questioned the US response and protection of diplomats stationed overseas.
Morell was expected to testify in place of Petraeus, and lawmakers said he should have the answers to their questions.
But Feinstein and others didn't rule out the possibility that Congress will compel Petraeus to testify about Benghazi at a later date, even though he's relinquished his job.
"I don't see how in the world you can find out what happened in Benghazi before, during and after the attack if General Petraeus doesn't testify," said Republican Senator Lindsey Graham.
Graham, a member of the Senate Armed Services Committee, wants to create a joint congressional committee to investigate the US response to that attack.
Feinstein said she first learned of Petraeus' affair from the media late last week, and confirmed it in a phone call Friday with Petraeus.
She eventually was briefed by the FBI and said so far there was no indication that national security was breached.
Still, Feinstein called the news "a heartbreak" for her personally and U.S. intelligence operations, and said she didn't understand why the FBI didn't give her a heads up as soon as Petraeus' name emerged in the investigation.
"We are very much able to keep things in a classified setting," she said. "At least if you know, you can begin to think and then to plan. And, of course, we have not had that opportunity."
The director of national intelligence, James Clapper, was told by the Justice Department of the Petraeus investigation at about 5pm on election day, and then called Petraeus and urged him to resign, according to a senior US intelligence official who spoke on condition of anonymity because he was not authorised to discuss the investigation publicly.
FBI officials say the Senate and House intelligence committees weren't informed until Friday, one official said, because the matter started as a criminal investigation into harassing emails sent by Broadwell to another woman.
Concerned that the emails Petraeus exchanged with Broadwell raised the possibility of a security breach, the FBI brought the matter up with him directly, according to the official, who spoke on condition of anonymity because he was not authorized to publicly discuss the investigation.
Petraeus decided to quit, though he was breaking no laws by having an affair, officials said.
Feinstein said she has not been told the precise relationship between Petraeus and the woman who reported the harassing emails to the FBI.
Georgia Senator Saxby Chambliss, the top Republican on the Senate intelligence committee, called Petraeus "a great leader" who did right by stepping down and still deserves the nation's gratitude. He also didn't rule out calling Petraeus to testify on Benghazi at some point.
"He's trying to put his life back together right now and that's what he needs to focus on," Chambliss said.
King appeared on CNN's State of the Union. Feinstein was on Fox News Sunday, Graham spoke on CBS' Face the Nation, and Chambliss was interviewed on ABC's This Week.