Old Biden misspeaks. Here’s one  from 2007:  Presidential hopeful Delaware Sen. Joe Biden stated unequivocally that he would  move to impeach President Bush if Bush  bombs Iran without first gaining congressional approval.
Old Biden misspeak: Â “The president has no authority to unilaterally attack Iran …
and if he does, as Foreign Relations Committee chairman, I will move to impeach,” said Biden. His whose words were followed by a raucous applause from the local audience.
In 2007, Biden said he is in the process of meeting with constitutional law experts to prepare a legal memorandum saying as much and intends to send it to the president.
http://www.foxnews.com/politics/2013/01/20/biden-misspeaks-at-iowa-ball-says-proud-to-be-president/
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Firenze Sage, Esq.  Never mind the evil Bush,  Virtuous Obama bit. Biden doesn’t seem to know that impeachment starts in the House of Representatives.