After landing this afternoon at Pittsburgh International Airport, Mitt Romney walked from his plane to a fence on the edge of the runway. What he saw: a huge crowd gathered in a nearby parking garage to watch his arrival.

"That's when you know you're going to win," Romney said after waving to the roaring crowd.

Check out another photo here:

— Steve Peoples — Twitter


EDITOR'S NOTE — Election Watch shows you Election Day 2012 through the eyes of Associated Press journalists. Follow them on Twitter where available with the handles listed after each item.