'In many ways, we don't always agree with this administration," Dieter F. Uchtdorf, one of the leaders of the Church of Jesus Christ of Latter-day Saints, said after meeting with President Barack Obama in the spring. The comment was an exercise in understatement, of course: From gay marriage to government-funded social programs, the president and the Mormons are on opposite ends of the political spectrum. Oddly, though, they have roughly similar views about immigration. In addition to pushing for national immigration reform, the LDS church supported a guest-worker initiative in Utah a couple of years ago. Rank-and-file...