SIERRA VISTA — For Democratic U.S. Rep. Gabrielle Giffords, the start of the campaign trail in Cochise County’s largest city was a wet one. Fortunately, the Saturday event attended by nearly 60 people was held indoors. As thunder rolled over the University of Arizona South administrative building, Giffords verbally lashed out against her Republican opponent, Jesse Kelly, who defeated the perceived GOP establishment candidate, Jonathan Paton, in Tuesday’s primary. But never once did she call Kelly by name, instead calling him “that guy” or “this guy” or “my opponent.” Before she took the podium, Giffords was introduced by Judy Gignac,...