Sessions answers to Trump. If Sessions is not complying according to Trump’s wishes, then Trump needs to issue a direct order to do so. Don’t you think?
Yes, I do, but the President can't order Sessions to violate the legally binding restrictions of his recusal.
The 'scope' document is part and parcel of the investigation into 'Russian collusion' during the 2016 election. Sessions is legally barred from having any involvement with such investigations.
All Trump can do is bypass him and directly order Rosenstein to release it.