(AP Photo/J. Scott Applewhite) IN this May 9, 2019, photo, Speaker of the House Nancy Pelosi, D-Calif., speaks on Capitol Hill in Washington. Pelosi introduced a new concept to the debate over President Donald Trump’s behavior: “Self-impeachable.” As Trump appears to be all but goading Democrats into impeachment proceedings, viewing the standoff as potentially politically valuable for his re-election campaign, Democrats are trying to impose restraint, preferring a more methodical approach and letting, as Pelosi says, Trump make the case himself by his stonewalling of Congress.