New: ProPublica has obtained audio from inside a U.S. Customs and Border Protection facility, in which children can be heard wailing.

Border Patrol agent jokes, “We have an orchestra here.” https://t.co/pkmD8DKYmo

— ProPublica (@ProPublica) June 18, 2018

This audio’s playing off someone’s laptop in the White House briefing room. (Reporters had gathered in here, awaiting briefing, before this story posted.) @PressSec has not arrived yet. https://t.co/dZyLWj0RhO

— Hallie Jackson (@HallieJackson) June 18, 2018