(U.S. Edition) Republicans are delaying the release of their proposed tax bill today, but are expected to unveil it tomorrow. One part of the measure could include a "millionaire's tax," which may just be a way to make the bill more marketable to the uber wealthy — we'll explain why. Afterwards, we'll discuss the background of the suspect involved in yesterday's New York truck attack, which left eight people dead and 11 injured. Plus: Patrick Foulis, the New York bureau chief for The Economist, stopped by to discuss whether the $100 billion Saudi Aramco IPO will actually happen.