I don't think that she could bring herself to express why she really felt it necessary to utterly and completely ignore standard practice in public service sine the 1950's' laws were passed. I don't think she could possibly express why she even repeated and enforced the same policy for others, the same one she disregarded, especially not under oath before a congressional hearing, and especially not before Gowdy. It would just simply kill her.
If anything, she'll just trot out that tired old tale of the 'vast right wing conspiracy', right on cue. But her credibility is gone. She has n oone of any common sense that'll believe her anymore.