bump^ :bump2:

so medical marijuana is federally legal !!

then how has it been illegally placed at schedule 1 on the csa;
Bambooweb: Controlled Substances Act

Schedule I drugs Schedule I drugs are defined as those considered to have high potential for abuse, with no recognized medical use in treatment in the US. It includes, among others, 5-MeO-DIPT; GHB; MDA; MDMA/Ecstasy; heroin; ibogaine; LSD; marijuana; mescaline; peyote; psilocybin:

GHB (Gamma-hydroxybutyrate) has been used as a general anestetic with minimal side-effects and controlled action but a limited safe dosage range. It was placed in Schedule I in March 2000 after widespread recreational use.
Ibogaine has potential medical uses in the treatment of drug and alcohol addiction and is regarded as an experimental, rather than illegal, drug in some countries.
Strict application of the "no recognized medical use" requirement would exclude marijuana from this schedule and place it in Schedule II, since it does have recognised medical uses in the US, notably to control nausea in those undergoing chemotherapy; see medical marijuana. In 1988, the DEA's own adminstrative law judge, Francis Young, proposed moving marijuana into Schedule II, on the basis that marijuana is "one of the safest therapeutically active drugs known to man" 1 and that a respectible minority of physicians supported its medical uses. The DEA refused to honor Young's ruling, and subsequent petitions to reschedule have been denied.
MDMA continues to be used medically, notably in the treatment of post-traumatic stress disorder (PTSD). The FDA approved this PTSD use in 2001. Medical recommendations were that because of its medical use it be placed in Schedule III, not Schedule I.
Psilocybin was studied in an FDA-approved study for its potential use in the treatment of obsessive-compulsive disorder.
Rohypnol (Flunitrazepam) was placed in Schedule IV in 1984, but the DEA is considering moving it into Schedule I because of widespread non-medical use, and the fact that Rohypnol is not approved by the FDA. It is best known as a date-rape drug but is also fairly widely used in recreational ways.
The medical uses illustrate the dominance of recreational use as the primary qualifying factor for Schedule I, even when there are medical uses which in theory disqualify them from being eligible for Schedule I.