Measures to legalize marijuana in five states got major victories in last week's election.
Arizona, New Jersey, South Dakota, Montana and Mississippi legalized some form of marijuana use.
South Dakota became the first state whose voters approved both recreational and medical cannabis in the same election.
Medicinal marijuana also was made legal in Mississippi.
And New Jersey, Montana and Arizona all legalized recreational cannabis.
Oregon also became the first state to make possession of small amounts of harder drugs including cocaine, heroin and methamphetamine, violations not punishable by jail time.
And voters in Oregon and Washington, D.C., also approved measures to allow for the therapeutic use of psychedelic mushrooms.