The Associated Press ran an article by one of its political reporters in which he speculated that Attorney General Gonzales might have to leave following the revelation that the FBI abused powers granted it by the Patriot Act. (This entry's title has a link to the AP article) This news comes on the heels of the scandal involving the fired U.S. Attorneys. Both stories play into the theme of the politicization of the Justice Department by the Bush Administration.
It will be interesting to see if Gonzales can survive the take-over of Congress by Democrats. The vaunted Bush loyalty only works one way. Bushes expect loyalty but they don't feel like they have to give it. That's because they are better than other people and when it becomes inconvenient for them to have someone in their lives politically, they get rid of them. An example of this is the resignation of Donald Rumsfeld. As soon as the Democrats took control of Congress, he was gone.
The same thing could happen to Gonzales and even Cheney. The only person who might be untouchable is Rove and that is only because he knows too much to dump.