The House select committee investigating the attack on the Capitol on Jan. 6 revealed that it told the Department of Justice that former President Donald Trump contacted one of its witnesses who hasn’t publicly testified yet.

“After our last hearing. President Trump tried to call a witness in our investigation. A witness you have not yet seen in these hearings,” Rep. Liz Cheney, the vice chair of the committee, said on Tuesday.

“That person declined to answer or respond to President Trump’s call and instead alerted their lawyer to the call. Their lawyer alerted us. And this committee has supplied that information to the Department of Justice,” she added.