WASHINGTON The House Jan. 6 committee on Thursday subpoenaed Kimberly Guilfoyle, the girlfriend of former President Donald Trump s eldest son who was in the Oval Office at the time Trump held his final conversation with his vice president trying to make Mike Pence overturn the election for him.

Committee Chairman Bennie Thompson said Guilfoyles presence in the White House the morning of the attack on the Capitol, her appearance at Trumps rally that day and her involvement in raising money for it all made her an important witness.

Because Ms. Guilfoyle backed out of her original commitment to provide a voluntary interview, we are issuing todays subpoena that will compel her to testify, Thompson, a Mississippi Democrat, said in a statement. We expect her to comply with the law and cooperate.

Guilfoyle, who is engaged to Donald Trump Jr. , did not respond to a HuffPost request for comment.

The subpoena itself said Guilfoyle, in addition to have having boasted about having raised so much money for this, was also involved in the presidents decisions about who would and would not be allowed to speak onstage, including concerns raised about him sharing the stage with people like Ali Alexander, Alex Jones, and Roger Stone.

Alexander, Jones and Stone were all involved in the Stop the Steal movement that spread Donald Trumps lies that the election had been stolen from him, and were pushing for a protest at the Capitol itself. Much of the rally audience did march on the Capitol as Trump had urged them to do and several thousand then illegally breached police barricades and entered the building.