Primary Outlet: The Bob Harden ShowBroadcast Date: Wednesday, March 6, 2019 - 2:10pmBroadcast Type: interviewBroadcast Format: radioScholar: Levy, Robert A.Subjects: President Trump declaring a national emergency to implement a border wallResearch Area: Immigration and Labor MarketsLink: https://www.cato.org/multimedia/media-highlights-radio/robert-levy-discusses-pre…