The U.S.’s nearly two-year-old border crisis continues unabated, yet Senate Democrats and some Republicans are foolishly resuming a push to grant amnesty to hundreds of thousands—and perhaps millions—of people living in this country illegally.

There is a simple test to determine if a given policy will reduce illegal immigration, and amnesty—whether for Deferred Action Childhood Arrivals (DACA) recipients or any other group—clearly fails the test.