The person whom former President Donald Trump was accused of having contacted following the Jan. 6 hearing when former administration aide Cassidy Hutchinson testified was a member of the White House support staff, sources told ABC News.

Trump's alleged contact with the individual was described on Tuesday by the House Jan. 6 committee's vice chair, Wyoming Republican Rep. Liz Cheney, who did not name the person.

"After our last hearing, President Trump tried to call a witness in our investigation -- a witness you have not yet seen in these hearings," she said at the close of the most recent committee hearing.

Cheney said the witness did not answer the call.

"Their lawyer alerted us, and this committee has supplied that information to the Department of Justice," she said.