served with a subpoena. scavino is one of several former trump aides the january 6th select committee wants to appear at a deposition next week. cnn s marshal cohen is covering these developments for us. what more do we know about the subpoena being served and received? reporter: fredricka, how are you? this is the fourth of four subpoenas to some of president trump s strongest supporters and closest allies from his time in the white house. it s dan ska cavino, a deputy cf of staff and the brains behind a lot of his activities on social media. the latest report is the subpoena was served at mar-a-lago, scavino wasn t there, but he is in possession of the subpoena. we ll have to start working with his attorney to formulate a response to the committee because they want all kinds of documents, communications, emails, and as you said, they