Rich Lowry: Revenge of the Nation-State

The start of the Trump administration has been a vindication of the American nation-state.

Anyone who thought it was a "borderless world," a category that includes some significant portion of the country's corporate and intellectual elite, has been disabused of the notion within about the first five days of the Trump years.

The theme running throughout President Donald Trump's inaugural address was the legitimacy of the nation-state as a community, a source of unity and the best means of advancing the interests of its citizens. The address was widely panned, but early polling indicates the pub...