en: During his campaign , he debated McCain twice , once in Tucson and once in Flagstaff . During his campaign , he twice debated McCain , once in Flagstaff and once in Tucson .
ms: Semasa kempennya, beliau membahaskan McCain dua kali, sekali di Tucson dan sekali di Flagstaff. Semasa kempennya, beliau dua kali membahaskan McCain, sekali di Flagstaff dan sekali di Tucson.