CNBC Arianna Huffington Studies Up for Her CNBC Co-Host Gig By Chris Ariens on Mar. 30, 2009 - 3:57 PM Arianna Huffington says she’s finally putting her Cambridge economics degree to good use. Tomorrow she’ll co-host CNBC’s Squawk Box. In fact, she booked four of the guests on the show, including Rep. Barney Frank ...