Charlie Savage: “The end of the two federal criminal cases against President-elect Donald Trump on Monday left momentous, unsettled questions about constraints on criminal wrongdoing by presidents, from the scope of presidential immunity to whether the Justice Department may continue to appoint outside special counsels to investigate high-level wrongdoing.” Kim Wehle: “It is hard to escape the grim conclusion: No president out of office has done more to grow the power of the presidency than Donald Trump.