Maybe she’ll go nuclear on them and admit the election was stolen.
There is truth to the phrase...”Hell hath no fury like a woman scorned.” I think that is what they are afraid of if they push her to resign:...that if pushed to a corner she will do do just that...have a presser where she admits to the cheat and names names while she has prosecutor Durham and even, gasp(!), president Trump at her side!
She wouldn't be privy to the inner workings of the DNC election fraud machine. Politicians at this level need to have plausible deniability.