You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Minnesota Governor Backs Down as Coalition Rallies Against Proposed Ad Taxes Trade Groups, Agencies Fight State Initiatives Before They Can Spread By Ana Radelat, Published on March 11, 2013 0 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.