"Morning is coming," said Ted Cruz as he took the stage in Iowa to declare victory in the 2016 Republican caucus.He wasn't referring to how long his victory speech went — even though it was so long that by the end no TV network was covering it. It was a deliberate callback to Republican hero Ronald Reagan, whose slogan in 1984, "Morning in America," has become a slogan of a conservative golden age. Cruz vastly overperformed expectations and outhustled Donald Trump to win 29 percent of Iowa voters. And while the length of his speech kind of distracted from its...