Headline: No, 'Firsthand Knowledge’ Was Never Required Of WhistleblowersLink: https://www.nationalmemo.com/no-firsthand-knowledge-was-never-required-of-whistl…Publication Date: Sunday, September 29, 2019Primary Source: National MemoNon-Cato Author: Timothy JohnsonType: new media postFormat: New MediaNature of Mention: citedScholar: Sanchez, JulianResearch Area: Government and PoliticsSubjects: the Trump-Ukraine whistleblower