GOP Pushes for Whistleblower Testimony as Dems Prepare for Public Impeachment Hearings

Three people are set to testify in public impeachment hearings this week: acting Ukraine Ambassador William Taylor and Deputy Assistant Secretary of State George Kent on Wednesday; former Ukraine Ambassador Marie Yovanovich appears Friday. Meanwhile, Republicans are demanding testimony from the anonymous whistleblower who first raised red flags regarding President Trump’s aid-for-investigation pressure on Ukraine. NBC’s Tracie Potts reports.