At the most recent Republican presidential debate, Donald Trump recited familiar concerns about immigration, which has helped propel him to the front of the pack. “We have no borders…. Illegal immigration is beyond belief,” the GOP frontrunner said . He added, “I’m tired of seeing what’s going on, between the border where the people flow over; people come in; they live; they shoot.”

That’s probably a decent summary of how many Republican voters see the problem of illegal immigration. Imagine how surprised they’d be if they considered the real-world evidence. The L.A. Times reported overnight:

The number of immigrants living in the U.S. illegally is at its lowest in more than a decade and, for the first time in years, has probably dropped below 11 million.