Rich Lowry: Welcome to Europe

Donald Trump will never be mistaken for a cosmopolitan, but he will bring a distinctively European flavor to the 2016 presidential election, should he win the Republican nomination.

As in continental Europe, the two parties in a Donald Trump-Hillary Clinton race would accept the basic parameters of the welfare state, and the debate about the size of government -- so central to American politics for decades -- would fade to the background.

No matter how appalled the left may be by Trump, his prospective takeover of the GOP would be a watershed for progressives. For 80 long years, they have dema...