Rich Lowry: No, Trump Is Not a Neocon

With U.S. missiles flying in Syria, the "mother of all bombs" exploding in Afghanistan and an aircraft carrier strike group heading toward North Korea, has there been a revolution in President Donald Trump's foreign policy?

His most fervent supporters shouldn't get overly exercised, and his interventionist critics shouldn't get too excited. What has been on offer so far is broadly consistent with the Jacksonian worldview that is the core of Trump's posture toward the world.

Trump's views are obviously inchoate. He has an attitude rather than a doctrine, and upon leaving office, he surely won't...