Locales with legalized marijuana (recreational or medicinal) appear to have lower opioid overdose rates, and lower rates of opioid prescriptions.
Places with legal marijuana issue fewer opioid prescriptions, large studies find
An analysis of more than five years of Medicare Part D and Medicaid prescription data found that after states legalized weed, the number of opioid prescriptions and the daily dose of opioids went way down.
Yes, I'm sure Sessions will go for that.