Joaquin Castro

Witcover: The judiciary: Last line of defense against anarchy

Witcover: The judiciary: Last line of defense against anarchy

President Trump is getting a refresher course in how the American system of government works, assuming he ever learned. That is, there are three independent branches, and no one of them can lord it over or ignore the other two.

Mr. Trump, now in charge of the executive branch, has done a fair job so far co-opting the legislative branch, at least the Republican majority in Congress. But he's run into a stone wall already with the judicial branch, which has slammed a door on his temporary ban on refugees and on visa holders from seven designated Muslim countries.

It took Mr. Trump less than two weeks in office to create a possible constitutional crisis. Federal judges have blown...

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