Hillary Clinton faced accusations of incompetence, evasion and obfuscation by angry members of Congress at two hearing into the deaths of the US ambassador to Libya and three other Americans in Benghazi last year.
Republican senators opened the way for a new showdown with Barack Obama on Tuesday, after an apparently disastrous meeting with UN ambassador Susan Rice that had been widely seen as an attempt to smooth her path to nomination as US secretary of state.
David Petraeus, the former CIA director, told congressional hearings on Friday that he had always known a terrorist group had been involved in an attack in Benghazi that left the US ambassador and three other Americans dead.
Former CIA director David Petraeus has denied passing classified documents to his lover, Paula Broadwell, as the FBI investigation focuses on how the general's biographer came to have restricted material on a personal computer and in her house.
Former CIA chief David Petraeus was said Monday to be "devastated" by the scandal-tainted collapse of his career, as those around his former lover warned of more to "come out" regarding the affair.
Hillary Clinton has taken responsibility for the deadly security breach at the US diplomatic mission in Benghazi, saying the buck stopped with her and not the White House.
Mitt Romney will call for an escalation of the conflict in Syria by arming rebels with the heavy weapons needed to confront president Bashar al-Assad's tanks, helicopters and fighter jets.
Barack Obama has defended his handling of the Middle East against criticism from Mitt Romney, saying pointedly that if the Republican presidential candidate wanted to start another war in the region, he should just come out and say it.
A film-maker thought to be behind a crude movie that sparked anti-American riots across the Muslim world has been questioned by police in California, as President Barack Obama vowed to bring to justice those responsible for the deaths of four Americans in Libya.
Barack Obama vowed on Wednesday to hunt down the killers of US ambassador Chris Stevens and three other Americans during an assault on its mission in Benghazi as suspicion grew that the diplomat was the victim of an organised attack by an Islamist group.