Rep. Liz Cheney (R-Wyo.) said former President Donald Trump attempted to contact a Jan. 6 committee witness.

During a hearing Tuesday , Cheney said the witness, who has not yet appeared publicly, did not answer a call from Trump and informed their attorney about the attempted contact.

The committee turned over information about the attempted contact to the Department of Justice, Cheney said.

Cheney said Trump called the witness after the last hearing, during which Cassidy Hutchinson , a former assistant to Donald Trump s chief of staff Mark Meadows, made a series of bombshell claims about the former presidents actions on Jan. 6.

Cheney did not name the witness.

Let me say one more time: We will take any effort to influence witness testimony very seriously, Cheney said.

At a hearing in June, Cheney suggested some of the committees witnesses had not testified as fully and forthrightly as others due to interference from people close to Trump, citing two statements from witnesses.

Legal experts told HuffPost that messages to witnesses could constitute obstruction of justice or tampering with a witness in an official proceeding, HuffPosts Arthur Delaney reported.

Tuesdays hearing tied Trump to those who led the violent attacks on Jan. 6, and sought to prove a march to the U.S. Capitol was part of his plan to maintain power despite losing the 2020 presidential election to Joe Biden .

The hearing detailed Trump supporters violent responses to a tweet he sent in December 2020 about a big protest in D.C. that would be wild. It also featured testimony from Stephen Ayres, a man who stormed the Capitol on Jan. 6, and former Oath Keepers spokesperson Jason Van Tatenhove.

The hearing came four days after the committee conducted a private interview with former White House counsel Pat Cipollone . Hutchinson had told the committee Cipollone warned Trump and his allies would be charged with every crime imaginable if Trump went to the Capitol on Jan. 6, as he wished.