That ship sailed during his confirmation hearing, January 2017.
Transcript of January 10, 2017 Confirmation Hearing
See starting at the bottom of page 21 ...
GRASSLEY: During the course of the presidential campaign, you made a number of statements about the investigation of former Secretary of State Hillary Clinton, relating to her handling of sensitive e- mails and regarding certain actions of the Clinton Foundation. You weren't alone in that criticism.I was certainly critical in the same way as were millions of Americans on those matters, but now, you've been nominated to serve as attorney general. In light of those comments that you made, some have expressed concerns about whether you can approach the Clinton matter impartially in both fact and appearance. How do you plan to address those concerns?
SESSIONS: Mr. Chairman, it was a highly contentious campaign. I, like a lot of people, made comments about the issues in that campaign. With regard to Secretary Clinton and some of the comments I made, I do believe that that could place me objectivity in question. I've given that thought.
I believe the proper thing for me to do, would be to recuse myself from any questions involving those kind of investigations that involve Secretary Clinton and that were raised during the campaign or to be otherwise connected to it.
GRASSLEY: OK. I think, that's -- let me emphasize then with a follow up question. To be very clear, you intend to recuse yourself from both the Clinton e-mail investigation and any matters involving the Clinton Foundation, if there are any?
SESSIONS: Yes.
And, as we all know, no politician anywhere at any time in history ever reneged on a promise. What would they do? “Unconfirm” him if he violated that pledge to Grassley?
(SMH)
WHY? Why didn’t President Trump rescind his nomination right then and there?