Donald Trump: dynasty killer

A genial consensus dominated Washington for decades that America’s century of greatness was built on largely unfettered free trade, generous immigration and an aggressive foreign policy that positioned the U.S. as the worldwide enforcer of those norms. The consensus was guarded by names like Bush, Clinton, Cheney, McCain, Obama and Biden. Then Donald Trump came down the escalator in 2015 and unraveled it all. In less than a decade, Mr. Trump has rewritten the rules of American politics and taken on every major dynasty of the last half-century. The Bushes...