Trump’s alleged contact with the person was described Tuesday by the vice chairwoman of the Jan. 6 House committee, Rep. Liz Cheney, D-Wyoming, who did not name the person. “After our last hearing, President Trump tried to call a witness in our investigation — a witness that you haven’t seen in these hearings yet,” he said at the close of the committee’s most recent hearing. Cheney said the witness did not return the call. “Their attorney notified us and this committee has provided that information to the Department of Justice,” he said. A picture of former President Donald Trump is seen during the third hearing of the US House Select Committee to investigate the January 6 attack at the US Capitol, June 16, 2022. Drew Angerer/POOL/AFP via Getty Images “Let me say one more time, we will take any attempt to influence witness testimony very seriously,” Cheney added, as the committee continues to warn of witness tampering in its ongoing investigation. This person was not someone Trump usually called. Many support staff members are those who work from administration to administration and would not necessarily have left when Trump left office. When asked Tuesday night how he knew Trump’s alleged phone call to a witness amounted to witness tampering, the committee’s chairman, Democrat Benny Thompson of Mississippi, said “I don’t” and that’s why they notified the Justice Department. . CNN first reported the new details about the witness. ABC News’ Libby Cathey contributed to this report.