President-elect Donald J. Trump’s news conference at Mar-a-Lago was a reminder of what the next four years may have in store.

David E. Sanger is a national security correspondent and senior writer for the New York Times, a contributor to CNN and an adjunct lecturer at the Kennedy School of Government. In a 38-year ...

“I can’t assure you—you’re talking about Panama and Greenland?" Trump said during an hourlong news conference at Mar-a-Lago in response to a question from The New York Times' David Sanger. Sanger ...