P.M. Edition for July 22. Kamala Harris is the likely Democratic presidential nominee after President Biden dropped his re-election bid, bringing her policymaking record into the spotlight. White House reporter Tarini Parti has more. And Secret Service Director Kimberly Cheatle draws the ire of lawmakers during her testimony on the near assassination of former President Donald Trump. Plus, why has the stock market turned upside down? Reporter Karen Langley explains the rotation lifting small caps and weighing on tech giants. Francesca Fontana hosts. Sign up for the WSJ's free What's News newsletter. Learn more about your ad choices. Visit megaphone.fm/adchoices