Former Attorney General Eric Holder may be setting the stage for a 2020 presidential run due to Hillary Clinton’s failed campaign. Mr. Holder arrived Monday at the Ronald Reagan State Building in Los Angeles to discuss ways officials can legally combat President Trump’s immigration policies, but he also addressed his desire to get “back on the field” of politics. “Up to now, I have been more behind-the-scenes,” Mr. Holder told Yahoo News in an interview published Tuesday. “But that’s about to change. I have a certain status as the former attorney general. A certain familiarity as the first African-American attorney...