Last week, Denver-based Marijuana Policy Project spokesman Mason Tvert
called President Obama's comments suggesting that marijuana may be less harmful than alcohol
"refreshing." But his group, a major backer of Colorado's Amendment 64, is considerably less impressed by statements attributed to Drug Enforcement Administration chief Michele Leonhart, who's widely perceived as an obstacle to progressive pot policy -- so much so that the MPP has launched a petition calling for the President to fire her. Details, videos and more below.