[dragonwriter]

> Marijuana cannot be legalized without an act of Congress.

Marijuana can be rescheduled without an act of Congress; what is on the table is not full legalization (which, AFAIK, could also be done within the executive, because IIRC drugs can be descheduled by the same process for rescheduling) but rescheduling from Schedule I to Schedule III.

And by "on the table", I mean the first step -- FDA recommendation to DEA -- has already been done.