The first marijuana bill to be officially filed in the new 115th U.S. Congress comes from Barbara Lee of California and Earl Blumenauer of Oregon, both Democrats in the U.S. House of Representatives. The bill would protect marijuana businesses that comply with their state laws from federal asset forfeiture laws.
Marijuana is more available now in the United States than it has ever been. This means, no matter how you slice it, the people responsible for making marijuana less available have failed.
While many groups have a hand in attempting to stop the flow of cannabis in the US, no agency has more responsibility than the Drug Enforcement Administration. So the bulk of the failure lies with them.