“Trump is a teetotaler on alcohol and drugs. Does anyone have evidence that he does not approve of this policy?”
Is there evidence that Trump does approve? As far as Sessions running with Trump’s policies, Trump said two or three days ago he wouldn’t have appointed him if he’d known he would recuse himself.
I have evidence that Trump is the president and that the AG is appointed by the president and the president, being the chief executive of the US, can very much set priorities for his cabinet members and their agencies.