The Board of Immigration Appeals has determined that the Secretary of State’s letter indicating that a non-citizen’s presence in the United States would have potentially serious adverse foreign policy consequences is presumptive and sufficient evidence that he is removable under 8 USC 1227(a)(4)(C)(i). The letter was also a significant negative discretionary factor warranting the denial of a waiver for a lawful permanent resident married to a U.S. citizen, with whom he shared a U.S. citizen child. Finally, the letter established that the non-citizen was a danger to national security, precluding him from receiving asylum.
The full text of Matter of M-K- can be found here: https://www.justice.gov/eoir/media/1436196/dl?inline