Blocking reporters from covering news events at the Oval Office. Ousting journalists from their working spaces in the Pentagon. Investigating public media companies that are often the targets of conservative attacks. In the three weeks since he returned to the White House, President Donald Trump and his administration have moved beyond his usual anti-news media rhetoric to take a variety of actions that have limited some outlets’ access while hitting others with lawsuits and directives that critics say are naked attempts to bend news coverage to his will. “I don’t know if Trump himself has a ‘game plan’ per se,...