Obama Slams Romney Ryan Tax Plan: They’ve Been Trying to Sell This Trickle-Down Snake Oil TOPICS:art lafferformer reagan economic advisorMedicareObama Slams Romney Ryan Tax PlanObama Slams Romny Ryan Tax Plan: They've Been Trying to Sell This Trickle-Down Snake Oilromneyromney ryanRomney Ryan Tax PlanThey've Been Trying to Sell This Trickle-Down Snake Oiltrickle-down economicsTrickle-Down Snake Oil Posted By: BMartin1776 August 16, 2012 No Art he was too busy hanging out with the marxists and socialists in college smoking dope, so there was no time to take an economics class!