It didn't work out so well for Nixon when he said "Stonewall it."
That was the smoking gun. It meant that he KNEW he was caught, and that he would be finished and impeached.
Then again, we live in interesting times when a POTUS and the democratic presidential candidate do the very same things on a daily basis, and nobody cares.
She, not being president, can’t use the Nixon defense. Her job description includes prevaricating for the boss.