The US Attorney General, John Ashcroft, and the Commerce Secretary, Don Evans, have both announced their resignations from President George W Bush's Cabinet.
The resignations, which were expected, clear the way for a reshuffle following Mr Bush's re-election last week.
A wider shake-up may involve the Secretary of State, Colin Powell, the Defense Secretary, Donald Rumsfeld , the Homeland Security Director, Tom Ridge, and National Security Advisor, Condoleezza Rice.