Headline: Chief Justice John Roberts's role in impeachment trialLink: https://www.cbsnews.com/video/what-will-chief-justice-john-roberts-role-be-in-im…Publication Date: Tuesday, January 21, 2020Primary Source: CBS NewsOther Sources: Yahoo! NewsType: new media postFormat: New MediaNature of Mention: featuredScholar: Shapiro, IlyaResearch Area: Law and Civil LibertiesSubjects: Donald Trump's Senate impeachment trial