Share Share Article via Facebook Share Article via Twitter Share Article via LinkedIn Share Article via EmailDemocrats need an economic message for swing voters, says former Sen. HeitkampFormer U.S. Sen. Heidi Heitkamp, Tomas Philipson, former acting CEA chair and a University of Chicago professor, and CNBC's Rick Santelli and Steve Liesman join 'Squawk Box' to react to September's retail sales data.