Reporting from Washington - In the run-up to the Olympics vote, the White House was getting a clear message from the architects of Chicago's bid: Balloting would be tight, and a personal visit to Copenhagen from President Obama just might lock in a victory. Leaders of the Windy City's campaign to secure the 2016 Games had done some nose-counting and were convinced the International Olympic Committee might well anoint Chicago as host, according to White House officials interviewed Saturday. "The intelligence that we had from the U.S. Olympic Committee and Chicago bid team was that it was very close and...