Pentagon sending 5,200 troops to secure US-Mexico border

WASHINGTON (AP) — A week out from the midterm elections, the Pentagon said Monday it is sending 5,200 troops, some armed, to the Southwest border in an extraordinary military operation to help stop illegal crossings by a caravan of migrants moving slowly north in Mexico.President Donald Trump himself, eager to focus voters on immigration in the lead-up to the elections, escalated his threats against the caravan, tweeting: "This is an invasion of our Country and our Military is waiting for