Impeachment hearings: Kurt Volker, Republican witness, contradicts Republican arguments Vox.comBig testimony revisions, bribery, and the ‘Gordon problem’: Biggest moments from Volker’s and Morrison’s heari POLITICOVolker and Morrison's impeachment testimony, in under 5 minutes Washington PostImpeachment hearings live updates: Volker, Morrison testify NBCNews.comKurt Volker on Biden: 'I know he respects his duties of higher office' | ABC News ABC NewsView full coverage on Google News