It is good that somehow the justice secretary has slipped in order to reveal a truth: That it is a violation of the constitution to assign military personnel in civilian position. And considering the gravity of the consequences when that truth is violated, it can be said that it is not a simple violation of the constitution but a gross violation.
And who would say that such kind of appointment to civilian position is without the knowledge of the President, the Commander-in-Chief? In the final analysis such violation falls upon the shoulder of the President.
Therefore, it is the President himself who grossly violated the constitution.
And one of the grounds to impeach a president is gross violation of the constitution.
Therefore, the President, for grossly violating the constitution, should be impeached. And Gonzales, if he is sincere, should not content himself with revealing the truth. He should resign from his position and campaign for the impeachment of the president.