But one place where Trump’s return to power has been tangibly felt, and greatly welcomed, is here in the far southeastern corner of Arizona, where the U.S. and Mexico sit uneasily side by side.

John Ladd, peering into the dry San Pedro River, says he sleeps better now that his Arizona ranch is no longer overrun with trespassers heading across the border from Mexico. (Mark Barabak / Los ...

But one place where Trump’s return to power has been tangibly felt, and greatly welcomed, is here in the far southeastern corner of Arizona, where the U.S. and Mexico sit uneasily side-by-side.