Taxing earned income at a higher rate creates a great discrepancy, says former Sen. Heidi Heitkamp

"One of the great discrepancies and inequities in our tax system is earned income is taxed at a higher rate than unearned income," Heitkamp said on CNBC's "The Exchange." Politics BEST DEAL UPDATE: Save 50% Today! Get 24/7 Access to … Read more…