Days before the start of earnings season, President Donald Trump ratcheted up trade tensions with China, sending the stock market reeling on Friday and scrambling the backdrop for the week ahead. The federal government shutdown is also dragging on. Here is an in-depth look at the three biggest things we're watching over the next five trading days. 1. Financial earnings: We're going to have a busy Tuesday, with three of our four financial holdings — BlackRock, Wells Fargo, and Goldman Sachs — all set to repo ...