A man as educated, intelligent, and experienced as Sessions knows polygraphs are fake.
More faux show for the common rabble.
This is probably a hail Mary attempt at deterrence, or getting a few of the guilty to resign “on principle” to avert further investigation. Unfortunately the leakers know, or will once Democrat lawyers have their way with them, that polygraph tests are unreliable and the results inadmissible in court. The news media will spew anti-polygraph stories to give any shameless liars cover. But any sign of life out of AG Sessions is better than none.
Then it will not be an issue. Employees will line up tomorrow morning to take it, knowing they can beat it.
Personally I don’t think it’s that easy