OK, let's walk down that path for a moment, shall we? Hypothetically-All 36 legal states get their Attorney's replaced with non-MMJ supporting ones. They lay charges against someone, go to trial, and exclaim "OMG, the defendant smoked pot!" with no additional charges/crime levied. Realistically, what do you think the jury of peers in Colorado (or California, or any of the others) is going to do? The federal prosecutors would be lucky if all they did was get laughed out of the courtroom... the people are the ultimate arbitrators on what is/isn't allowed and after 37 years of trying it one way (and not having it go away) they instead are trying the opposite.
The People of several States have already spoken in declaring it no different than saying, "OMG, he drank a beer!" (again, with no associated crime like DUI in addition). It's just a non-issue anymore and has had less impact than drinking has all while filling state tax coffers in windfall amounts. They're already too far down the path of deregulation to reverse now, even if some want to put the genie back in the bottle...
ACOL Long$ will win big on this and, if it came down to it, can/will outlast any Sessions term of influence, however short that may be...even if it were the worst case scenario you propose.
Forecast-Watch for Schedule 1 delisting petitions to gain traction in the coming months. It was placed there in 1970's, it's finally time and has enough backing/evidence to see it removed now. (imo)
ps. the politicians in general (bipartisan plus ind's!) are freaking because they don't want to get caught between the banning Feds and the will of the People. Positions tend to get lost, complicated, voted out, and catch excessive amounts of heat/calls/letters/pressure/etc when that happens.
