REUTERS/Lucy Nicholson
Volunteer Charlie Kirchheimer, 25, (R) holds out a jar of dried cannabis buds for Cyle Tahsini, 21, at the La Brea Collective medical marijuana dispensary in Los Angeles, California, March 18, 2014.
Election Day could be a watershed moment for marijuana.
Marijuana legalization will appear on the ballot in five states: California, Nevada, Arizona, Maine, and Massachusetts. And, another four states - Montana, North Dakota, Florida, and Arkansas - will be voting on medical marijuana.
If all five votes pass, that means that nearly a quarter of all Americans will live in states where weed is legal. It may well be a tipping point for the federal government's stance on the issue.
See below for a breakdown of each state: