Why didn't the Choom Gang Pres legalize it? Follow the money...
Apparently, the USDA has patented synthetic cannibis for medical purposes. Big Pharma companies have purchased this patent and don't want any competition from home growers. I learned this from an Eco-Hippie-Anarchist free newspaper I picked up on my travels. Always good to know what your opposition is thinking.
“Follow the Money”
http://www.nationalcenter.org/ObamacareLobbying.pdf
Hospitals, Private Insurers, Doctors, and Patients All wound up holding the s**t end of the stick with Obamacare.
Only the drug companies and the Democrat place holders stand to benefit from it.
Now the Trick as it were, is to keep MM from becoming a Govt. monopoly/additional revenue stream if it ever becomes legalized.