White House Chief of Staff John Kelly is out. He will leave near the end of the year, President Trump told reporters in remarks on the South Lawn of the White House on Saturday. The president described Kelly, 68, as a “great guy.” Trump was on his way to the Army-Navy football game in Philadelphia. Kelly’s tenure was marked by efforts to bring discipline to Trump’s White House, though his relationship with the president was rocky. Vice President Mike Pence’s chief of staff, Nick Ayers, is a leading contender as Kelly’s replacement. Trump said only that he will announce a successor in the next few days.