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Day 5, Part 6: GOP questions Hill & Holmes

California Congressman Devin Nunes, the top Republican on the House Intelligence Committee, and Steve Castor, senior investigative counsel for Republicans on the panel, questioned Fiona Hill, a former senior director for Russia on the National Security Council, and David Holmes, a diplomat in the U.S. embassy in Kiev, on Thursday, the fifth day of public impeachment hearings.
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