WASHINGTON (AP) - Thousands of U.S. troops to stop an "invasion" of migrants. Tent cities for asylum seekers. An end for the Constitution's guarantee of birthright citizenship. With his eyes squarely on next Tuesday's elections, President Donald Trump is rushing out hardline immigration declarations, promises and actions as he tries to mobilize supporters to retain Republican control of Congress. His own campaign in 2016 concentrated on border fears, and that's his final-week focus in the midterm fight. "This has nothing to do with elections," the president insists. But his timing is striking.