Trump Duly Slapped, Elizabeth Warren Returns to What She Does Best

Fresh from her first appearance on the campaign trail with Hillary Clinton, Sen. Elizabeth Warren on Wednesday returned to her favorite activity: going after Wall Street. With Sen. Mark Warner (D-Va.) and Rep. Elijah Cummings (D-Md.), Warren submitted a bill aimed at strengthening regulation of the derivatives market, now notorious for its contribution to the financial crisis of 2007 and 2008. Derivatives are contracts whose value is derived from (and changes according to) the value of other ass...