Bloomberg Anchor Margaret Brennan's Birthday Party at The Collective11 of 57TweetHireBuyShot AtBloomberg Anchor Margaret Brennan's Birthday Party at The CollectiveTag PhotoAdd×Add New personNote: Only one name accepted at a time. Not multiple names separated by commasGuestsMargaret BrennanJohn KellyDavid RhodesEmma RhodesDenise Rehrig