Mike Pence can drop all the excuses, because we know he's a liar.
The problem with Pence’s disingenuous naïveté is not just that Pence was warned in November by Representative Elijah Cummings (D-MD), and warned in January by Flynn himself, it’s that knowing this was Pence’s job. As both the vice-president-elect and the chair of Trump’s transition team, Pence was expected to vet and confirm the security of every cabinet nominee, Flynn included.
Mike Pence’s position that he simply didn’t know isn’t just defense through ignorance, it’s defense through incompetence.