Incumbent GOP Sen. Jon Kyl's efforts to publicly align himself with fellow Arizona Republican Sen. John McCain should come as no surprise. After all, the popular McCain not only endorsed him, but is also acting as his campaign chairman. Kyl is even known to often to point out that they vote together "86 percent of the time." What is surprising, however, is that Kyl's opponent, Democrat Jim Pederson, is also referencing McCain on a regular basis, highlighting voting discprencies between the two Arizona Republicans. Fred Solop, a political science professor at Northern Arizona University, told the Arizona Daily Star that Pederson is likely using McCain's name to drive a "wedge" between Kyl and Republican voters on issues like illegal immigration.