His threats against North Korea expose the many dangers of the White House's post-9/11 powers. Here's what Congress must do.

The standoff on the Korean Peninsula is tense, but stable—unless the American president disrupts it.

As the country descends into dictatorship, who will stop Nicolás Maduro?

Trump's alt-right speech in Poland redefined the West in nativist terms, eschewing democratic idealism in favor of "blood and soil" nationalism.

The new documentary about the Russian strongman exposes a thematic vein that runs through Stone's entire body of work.

The active-duty national security adviser is covering for a scandalous presidency. Is he tarnishing his reputation, or is his reputation overrated?

That's good news for Europe, if it seizes this moment to finally reform NATO.

What might countries accomplish now that they can't rely on America?

His agenda has stalled, but he's already done lasting damage to America.

Nixon was smart and calculating. Trump is just ignorant and incompetent.

The terrifying impact of the president's permanent uncertainty.

This week was pretty bad. But next week will be worse.

There is no "learning curve" for the president. He changes his tune for the same reasons a salesman does: to close the deal.

His administration can't get on the same page about Syria because there is no coherent foreign policy. Anything is possible, and that's horrifying.

The missile attack on Syria shows how the president has caved to the Pentagon—with deadly consequences for U.S. foreign policy.