Donald Trump’s Amnesty

That Donald Trump has said something incoherent is not remarkable. But even for a campaign that has largely substituted adjectives for ideas, Trump’s recent incoherent comments on immigration were remarkable, coming as they do from a candidate who has made immigration the keystone of his platform. His intellectual failure is instructive, and the other candidates should learn from it. Trump’s original proposal was to build a wall and force the government of Mexico to pay for it. The latter half of that proposition is too silly to merit much criticism and may be dismissed as bluster. The first half is a little more complicated: The actual geography of the U.S.–Mexico border ensures that there will not be a wall, though a series of barriers is desirable. But that is only a small part of the solution: Walls can be ascended or tunneled under, and must be patrolled; recent research suggests that more than half of new illegals do not sneak cross any border but simply enter legally and overstay their visas; no effective national system is in place to enforce our immigration laws at the critical place: the work site. “Build a wall” is at most a part of the broader solution.