“it was clear that Biden did not expect HHS to confirm its previous position that marijuana belongs in Schedule I. He expected HHS to recommend that marijuana be moved to a lower schedule, which is what it ultimately did. As the details of the HHS recommendation clarify, that decision was not based on new scientific evidence. It was based on a reinterpretation of the criteria for Schedule I that could have been implemented much sooner if HHS and the DEA had been open to it, or if a previous president had encouraged it.”
https://reason.com/2024/01/15/the-newly-unveiled-hhs-rationale-for-rescheduling-marijuana-underlines-drug-warriors-dishonesty/