10 things you need to know before the opening bell

Here is what you need to know. After Mueller's team spent hours grilling Sessions, Trump may be up next. Attorney General Jeff Sessions was the highest-ranking Trump administration official known to be interviewed by the special counsel Robert Mueller's team so far, and President Donald Trump's lawyers are now reportedly preparing for questioning. Tesla CEO Elon Musk will now be paid nothing unless he increases his company's market capitalization and the shareholders do very well....