The congressional committee investigating the Jan. 6 rioting at the U.S. Capitol formally asked Ivanka Trump to voluntarily answer questions about former President Donald Trump’s behavior during the attack.

The daughter to the former president also served as a top advisor during the 2021 incident.

“The Select Committee wishes to discuss the part of the conversation you observed between President Trump and Vice President Mike Pence on the morning of January 6th,” read a letter from the committee.

“Similarly, the Select Committee would like to discuss any other conversations you may have witnessed or participated in regarding the president’s plan to obstruct or impede the counting of electoral votes,” they added.

The request is the first made by the committee to a member of the Trump family. They have also obtained phone records from Eric Trump and Kimberly Guilfoyle, who is engaged to be married to Donald Trump Jr.