Would a President Trump ruin America's foreign policy — or save it?

After Nevada, this is perhaps the most important question of Trump's candidacy

We're all ruined.
(Image credit: Ethan Miller/Getty Images)

Donald Trump's blowout victory in Tuesday's Nevada caucuses — his third straight double-digit romp over his Republican presidential competitors — has thrown the GOP into an apparent crisis. Both Marco Rubio and Ted Cruz, supposedly the only viable competitors to Trump, are on the ropes, losing by more than 20 points to Trump. Trump has leads in most Super Tuesday contests. Who's going to stop him now?

It is time to take seriously the prospect of Trump's possible presidency — and the most compelling criticisms of it.

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James Poulos is a contributing editor at National Affairs and the author of The Art of Being Free, out January 17 from St. Martin's Press. He has written on freedom and the politics of the future for publications ranging from The Federalist to Foreign Policy and from Good to Vice. He fronts the band Night Years in Los Angeles, where he lives with his son.