Nonetheless, the eight GOP senators and six House members seem to doubt the motivations behind the HHS recommendation. In the letter, which The Washington Stand initially disclosed, they asserted that the existing “research, scientific findings, and prevailing trends support the argument that marijuana should continue to be classified as a Schedule I substance.” They highlighted data from the National Institute on Drug Abuse (NIDA) regarding the prevalence of cannabis use disorder and expressed concerns about the increasing potency of THC in marijuana products.