In the midst of one of the most precipitous political crashes in the Mountain West, Sarah Palin made a mad dash into Boise on Friday, urging the election of a man who had plagiarized his campaign speech from Barack Obama, had been rebuked by the military for misusing the Marine uniform and had called the American territory of Puerto Rico a separate country. And why not? Vaughn Ward, the Republican congressional candidate from Idaho, has the dubious character trifecta of the Palin brand: bone-headed, defiant and willfully ignorant. When told that Puerto Rico was not a country, he said, “I...