That’s a funny line but it makes it sound like the legislature legalized pot in CO.
It was a public referendum vote.
I think it's safe to say the majority of hedonists are Democrats. The vote was 55-45, with counties that are heavily "progressive" having more lopsided votes for legalization, suggesting it was Democrats that mostly voted yes.
These days many Republicans have abandoned their traditional moral postures and embraced nihilistic libertinism, so I'm sure there were plenty of Republicans that thought "why not?"
http://data.denverpost.com/election/results/amendment/2012/64-legalize-marijuana/