President Donald Trump speaks during a rally at Southern Illinois Airport in Murphysboro, Ill., Saturday, Oct. 27, 2018. Eager to focus voters on immigration in the lead-up to the midterm elections, Trump on Monday escalated his threats against a migrant caravan trudging slowly toward the U.S. border as the Pentagon prepared to deploy thousands of U.S. troops to support the border patrol. (Jeff Roberson/AP)