David Sanger, chief Washington correspondent for the New York Times, joins Liz White to discuss U.S. lawmakers' continuing efforts to reach an agreement on the debt limit. With a week to go until the August 2nd deadline, Democrats and Republicans are pushing competing emergency plans to raise the debt ceiling. But the markets will also play a role in any forthcoming deal. Sanger weighs in on the ongoing negotiations as well as the lessons learned from Greece's financial crisis and bailout.