There is no such thing as a blame-it-on-Congress legal justification.
For the chief executive to attempt to take power into his or her hands which Congress rightfully holds (and upon which it has chosen not to act) — is treason.
Period.
Every week it seems we have a new accusation (read example) of criminal behavior against the hero of Benghazi. Nothing has been done and nothing will be done.
Get ready for 2.5 more years.