Trump issues Thanksgiving threat to close US-Mexico border

PALM BEACH, Fla. — President Donald Trump made a Thanksgiving Day threat to close the U.S. border with Mexico for an undisclosed period of time if his administration determines that its southern ally has lost "control" on its side.Trump also said he has given the thousands of active-duty troops he sent to the border before the Nov. 6 midterm elections the "OK" to use lethal force against migrants "if they have to." And he said Homeland Security Secretary Kirstjen Nielsen, whom he has fault