Trump's own applause group. Probably the same folks that cheered him at his press conference.
This is officially creepy. How long can a President behave this way before he gets chucked out? This isn't a game show. He's deliberately falsifying the reaction to his appearances. Again, like an autocrat.
"The president was able to generate a few laughs from the crowd by describing journalists as the most “dishonest human beings” while complaining about the way crowds were portrayed by the media. He then claimed that 1.5 million people were in attendance while official estimates have counted between 200-250,000.
Pool reports later clarified that the attendants who were cheering and clapping when Mr Trump spoke were not CIA staffers but people who accompanied Mr Trump to the briefing."
http://www.independent.co.uk/news/world/americas/donald-trump-cia-meeting-full-support-condemns-media-isis-a7539766.html