The Bush v. Gore case damaged the credibility of the court and knocked down trust in the institution. Determining Cruz's eligibility early on, no matter how ridiculous or politically-motivated is the argument, saves us from another divisive campaign that eats at the trust and credibility of our institutions.
Trump has surprised all by maintaining his lead. But Frum and Alter agree that: A) the Republican Party will splinter if he's chosen, and B) Cruz is too ideologically rigid for general election. So GOP has to pick its poison. Also: Not hard to explain Dem schadenfreude over whether Cruz is a natural born Canadian.
The deepest thing I took away from reading American Conspiracy Theories was how hard it is to actually define the term. Especially while conducting the interview, I was forced to reexamine and redefine what I would personally qualify as a conspiracy theory. In other words, the book made me think -- especially about my own biases and perceptions.
Most of the rank-and-file conservatives with whom we might interact get their information from conservative media sources. Republican politicians are ensconced within it as well. Inside the walls of that closed environment, facts that do not jibe with conservative ideology or the conservative interpretation of events are twisted, turned on their head, or simply ignored.
Priebus can cut off contact with liberal media outlets to protest claims that he feels are unjust; however, if he is truly dedicated to reestablishing the Republican Party, he could start by looking in the mirror first because as these examples show there is nothing the liberal media can say that will make Republicans look worse than their own actions do.