Rich Lowry: The Party of Workers

In the course of a couple of tweets, Donald Trump may have ended the image of the GOP as the party of corporate America.

After striking a Carrier deal to preserve about 800 jobs, the president-elect slapped the Indiana company Rexnord on Twitter for "rather viciously firing" its workers and then went after Boeing for ripping off the public on a $3 billion Air Force One deal.

Just like that, and in less than 280 characters, Trump had established more distance from big business than the GOP had in a generation. In his frenetic way, he is forcing a reorientation of the Republican Party's economic...