August 9, 2004CAMPAIGN NOTEBOOKDoing the Locomotion, and a Ranchera or Two, With Kerrys and EdwardsesBy DAVID M. HALBFINGER LAGSTAFF, Ariz., Aug. 8 - Senator John Edwards pulled his dried-out contact lenses from his eyes. "Eighteen-hour days will do it," he said.A mariachi band had greeted Senator John Kerry's chartered train as it inched into Albuquerque at 11:57 p.m. on Saturday.A few feet away, the candidate's wife, Teresa Heinz Kerry, was also showing the effects of the grueling cross-country trip. Nevertheless, Mrs. Heinz Kerry started swaying and shaking to the beat. Then, as her husband worked a rope line, carefully scrawling...