President Bush said on March 14, 2007, “U.S. attorneys and others serve at the pleasure of the President. Past administrations have removed U.S. attorneys. It is their right to do so.”
Karl Rove said on March 8, 2007, “Look, by law and by Constitution, these attorneys serve at the pleasure of the president and traditionally are given a four year term.”
Despite this acclimation of unfettered power, there must be some reason for a decision. Of course, “at the pleasure” does not require a reason to be justified. If the basis for a change in Department of Justice personnel is simply on a Presidential whim, then that is as scary, if not more so, than partisan politics.