“Trump Wants Them Out of There”:
After Swinging the Axe at Tillerson, Trump Mulls What to Do with McMaster, Sessions, Jared, and Ivanka
https://www.vanityfair.com/news/2018/03/...and-ivanka

A new AG could theoretically take over the Mueller investigation.
It's obvious Mueller intends to drag this out as long as possible to detract from the accomplishments of this president and protect his GF Comey.