Primary Outlet: WTOP (Washington D.C.)Broadcast Date: Thursday, May 31, 2018 - 5:40pmBroadcast Type: interviewBroadcast Format: radioScholar: Lester, SimonSubjects: Trump tariffs on aluminum and steelResearch Area: TradeLink: https://www.cato.org/multimedia/media-highlights-radio/simon-lester-discusses-pr…