Ted Cruz will grab an upset win over Donald Trump in Arizona's presidential primary election on Tuesday, as he's the "only candidate with any kind of organization out here," a close confidant of Sen. John McCain predicts. "They have him positioned to spring the upset," Kurt Davis, a GOP operative in Arizona, told The Hill. "They just have to deliver." According to Real Clear Politics, Trump is ahead of Cruz by 13 points in the state's polls, but in Arizona, Republicans on the ground say the race's margin is narrower, and Cruz could pull off the upset.