House Dems subpoena White House for key documents in impeachment inquiry

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House Oversight Committee Chairman Elijah Cummings, D-Md., subpoenaed the White House on Friday for documents related to the House impeachment investigation after administration officials failed to comply with repeated requests for the materials. NBC News and MSNBC Legal Analyst Maya Wiley reacts to the breaking news with MSNBC's Ari Melber.