Trump on summit: "I don't think I have to prepare very much", Trump headed for showdown over trade with G7 leaders, Trump: no need to "prepare very much" for Kim summit, Pompeo: North Korea has committed to denuclearization, Trump: ready for summit but "prepared to walk away", Trump: we could sign an agreement to formally end Korean war, French president slams Trump in new tweet, moderate lawmakers trying to force a vote on immigration reform, More GOP leaders break with Trump on "spy" claim, Justice department to show top lawmakers classified info on FBI source, Pompeo: Giuliani doesn't speak for administration, Trump complains of Mueller "witch hunt" as he prepares for summit, Outrage over video of police beating unarmed man, mobile phone spying devices detected near White House via Knit