This is a Closer Look at Robert Reffkin. He was a White House Fellow, where he spent a year working with Treasury Secretary John Snow. In  2012, he co-founded Real Estate tech disruptor, Compass, with partner and technology expert, Ori Allon. He also raised $1.3 million to help the Success Charter Network open its first school in the Bronx and he ran 50 marathons in 50 states to raise $1 million dollars for education. Robert Reffkin joins former SEC chairman Arthur Levitt to talk about the company he started in a single downtown Manhattan office, now valued at 4.4 Billion dollars.