Can disruption be an actual plan? The word cropped up a lot in President Donald Trump’s first term – and is doing so again in his second term. But the furious pace of actions since Jan. 20 underscores what’s changed since 2017: Mr. Trump and his team understand far better how government works, and they have a clear agenda. Each action sparks often sharp reaction, but also a raft of questions: Is it overreach? Encouragement of chaos? A reflection of the ever-greater power that presidents have accrued over many administrations? Even as our story on this subject was being written, a very recent order issued by the White House was changing, underscoring the challenge that lies ahead.