The Dow and the S&P log their first positive day in six - ahead of today's CPI report, expected to show inflation running hot, potentially putting the Fed in a tough spot on its tapering timetable. U.S. House Democrats return from their August recess with a plan to roll-back Trump era corporate tax cuts, as they look to finance the 3-and-a-half-trillion-dollar infrastructure bill. And in Corporate news, German real estate company Vonovia drops a key condition in its bid to take over rival Deutsche Wohnen - potentially removing the last hurdle to the deal.