See my #143. I think I was recalling the constant calls for Sessions to recuse during several weeks before he actually did recuse on March 2. I’d remembered some of it incorrectly as having taken place before the confirmation hearing when most of it was actually after that.
Still, there were several weeks when it was in the news before Sessions announced his recusal. Trump and everyone else had plenty of time to discuss Sessions’ eventual decision with him before it was announced.
Trump's complaint is that he would not have NOMINATED Sessions, if Sessoins had only told him up front that he (Sessions) was going to recuse.
As for recusal or not, either the regulation is followed or it is flouted. I guess what Trump is saying is that Sessions should have flouted the regulation. Okay, and after that, then what?
Actually it would be Session's obligation to discuss it with Trump before making that decision.
People keep thinking the AG is independent he is not.