Members of the US Congress are demanding more details about the FBI investigation that unmasked an extramarital affair between ex-CIA director David Petraeus and his biographer.

David Petraeus, the retired four-star general renowned for spearheading military campaigns in Iraq and Afghanistan, resigned abruptly as director of the CIA after admitting to an extramarital affair.

US president Barack Obama said last night his re-election means Americans support his approach for avoiding a looming “fiscal cliff” that threatens a new recession — and that his approach means the country’s wealthiest people will have to pay more in taxes.

David Petraeus has resigned as the director of US intelligence agency the CIA after admitting he had an extra-marital affair.