Kennedy said marijuana legalization "slipped under the radar" and happened so quickly in Colorado and Washington that a counter organization had no room to speak and people "didn't know what their stake was in the debate."
He said SAM will give those groups a voice, finally.
Amendment 64, which legalized recreational use of marijuana in Colorado, passed with 55 percent of the vote. Medical marijuana has been legal in the state since 2000.
During the campaign to legalize recreational pot use, the No on 64 campaign raised just shy of $700,000 to fight the measure, about a quarter of the $2.5 million two main campaigns backing Amendment 64 raised.
"Like everyone else who woke up after Election Day and saw that (marijuana legalization) was moving fast in states like Colorado, I realized it looked as though the domino effect could move to other states quicker," Kennedy said. "I want to slow this train down and begin a discussion before other states rush to judgment."
Megan Mitchell: 303-954-1223, firstname.lastname@example.org or twitter.com/megs_report