Headline: Tiroteo contra congresistas republicanos deja en evidencia clima de crispacion en EE.UU.Link: http://www.economiaynegocios.cl/noticias/noticias.asp?id=369974Publication Date: Thursday, June 22, 2017Primary Source: Economia y Negocios (Chile)Non-Cato Author: Francisca Maturana TorresType: articleFormat: Newspaper (Online)Nature of Mention: quotedScholar: Friedman, Benjamin H.Research Area: Government and PoliticsSubjects: violence in the American political climate