Arizona is now one of the most important states in the country for determining the presidential election, since there are only a few states that actually decide elections, the ones with the closest polls. The mainstream media gleefully reported last week that conservative Arizona has been labeled “leans blue” in the presidential race by The Cook Political Report. They pointed to a few signs in recent years to bolster the claim that Arizona is becoming a blue state. One of Arizona’s two senators is a Democrat, Kyrsten Sinema, and five out of Arizona’s nine members of Congress are Democrats. But...