these other senior officials who are also defying subpoenas the way that don mcgahn did, there's been a question as to whether or not this ruling would be narrowly targeted to just apply to don mcgahn or whether it might also apply to people like john bolton or the deputy national security adviser under bolton, charles kupperman, or any of the other people who are fighting subpoenas including those who have asked other judges to weigh in on that. can you tell us how broad or narrow you think this is construed? >> i think the judge here used language deliberately to try to suggest that it's not narrow, that it implies, for example, she says even to witnesses who work in the national security space. nonetheless, this opinion applies to this witness, if other witnesses received subpoenas they, too, could file a legal challenge in court.