WASHINGTON — President Obama held an off-the-record meeting with select reporters from some of the nation’s largest print and online outlets Monday, in the White House’s latest effort to placate an increasingly restive press corps. White House officials regularly meet with reporters for so-called “background briefing sessions,” where the attendees cannot be mentioned by name nor quoted directly, but Monday’s meeting was different. Initially billed as a conversation with White House Chief of Staff Denis McDonough, the president made a surprise appearance — a very unusual move — and the White House placed the proceedings off the record beforehand. The...