If House Speaker Paul Ryan’s own Facebook page is any indication of how well he will fare in next Tuesday’s all-important primary race against upstart challenger Paul Nehlen, it might not be smooth sailing for the 16-year incumbent come Election Day. In fact, Ryan’s campaign is showing signs of “melting down,” at least if social media is to be taken as a barometer. The level of antipathy toward Ryan on his two Facebook sites has been heating up in recent days as the election draws closer. “There’s such a deluge of comments negative to Paul Ryan on Ryan’s own Facebook...