Voters in California, Massachusetts and Nevada passed a ballot initiative to legalize recreational marijuana.
This is the biggest electoral victory for the marijuana reform since 2012, when Colorado and Washington first approved marijuana for recreational use.
Adults over 21 can now use, possess, and transport an ounce of marijuana for recreational purposes.
The new bill imposes a 15 percent sales tax on marijuana, generating up to $1 billion in new tax revenue annually.
