One of the lead House investigators into the Benghazi terrorist attack called for former Secretary of State Hillary Clinton to testify before Congress about information provide by State Department whistleblowers, adding that he would support issuing a subpoena if she refuses.

“I would hope that she would step up and help us out,” Rep. Jason Chaffetz, R-Utah, replied when Charlie Rose asked him if he wants the House Oversight and Government Reform Committee to subpoena Clinton. Chaffetz emphasized that the committee is not yet ready to issue such a summons, but noted that “we do have whistleblowers stepping up, [so] I think we’re going to get serious about forcing people legally to [testify].”