Hey, I know that link…

Although the President may not unilaterally deschedule or reschedule a controlled substance, he does possess a large degree of indirect influence over scheduling decisions. The President could pursue the appointment of agency officials who favor descheduling, or use executive orders to direct DEA, HHS, and FDA to consider administrative descheduling of marijuana. The notice-and-comment rulemaking process would take time, and would be subject to judicial review if challenged, but could be done consistently with the CSA’s procedural requirements. In the alternative, the President could work with Congress to pursue descheduling through an amendment to the CSA.

It’s a good one, I know it sucks downloading a PDF, but you really should so you can read it.