Trump Threatens to Close Border If Mexico Doesn’t Stop Illegal Entries

President Trump threatened again Friday to shut down all or a portion of the U.S. southern border as administration officials said that the influx of illegal immigrants there was straining resources beyond the breaking point.

While touring Florida’s Lake Okeechobee Friday, Mr. Trump called on Mexico to stop asylum-seeking families from reaching the U.S. border. “We will keep the border closed,” he said. “And we will keep it stopped for a long time. I’m not playing games.”