Central American migrants reach the shore on the Mexican side of the Suchiate River after wading across, on the the border between Guatemala and Mexico, in Ciudad Hidalgo, Mexico, Saturday, Oct. 20, 2018. Among the thousands of mostly Honduran migrants in the caravan walking through southern Mexico, there are also Guatemalans. Though not as big a group, they too have plenty of reasons to leave home. (AP Photo/Moises Castillo)
WASHINGTON — Eager to focus voters on immigration in the lead-up to the midterm elections, President Donald 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.