Didn't Reagan express interest in legalizing pot in 1983, because he saw the BATFinks as a worse alternative?
In the last book attributed to Ronald Reagan, "Reagan:In His Own Hand", he wrote in the 1970`s, 'if adults chose to use marijuana, that was their business, but they should be aware of the serious risks involved'. Paraphrasing, of course.
But I will remind you, that President Reagan, presided over the largest increases in funding, for the national drug control policy, in US history. If Reagan wanted to, by executive order he could have removed marijuana from the list of controlled substances. He chose not to. Nuff said.