Using the 5th. amendment to defend one's guilt is fine. But he can't evoke executive powers any more ( He's not really president anymore, he just thinks he is. ).Pleading the fifth ends when you get out of office ? Hmmmm, I thought that was a part of the defense mechanisms found in any judicial processes, otherwise in which is afforded all in the case of being accused by ones political enemies for political purposes or in any other cases where it may have been used or applied ?
Definition - When any individual takes the Fifth, his or her silence or refusal to answer questions cannot be used against him or her in a criminal case. A prosecutor cannot argue to the jury that the defendant's silence implies guilt.