A Senate committee looking into the firing of former San Diego U.S. Attorney Carol Lam and seven other federal prosecutors is asking the U.S. attorney general to make several Justice Department officials available.
Committee members say if Attorney General Alberto Gonzales doesn't voluntarily make the officials available to testify about what they know, they could be subpoenaed.
Six of eight fired U.S. attorneys have told House and Senate committees that lawmakers, a high-ranking congressional aide and a Justice Department official pressured them and interfered with their work.
Some of that work involved corruption cases.
The Senate Ethics Committee already is conducting a preliminary inquiry into a call last October by Senator Pete Domenici to David Iglesias -- since fired as the U.S. attorney for New Mexico.
Domenici has denied trying to influence a corruption probe Iglesias was conducting.
