Long before Hillary Clinton called millions of Americans a “basket of deplorables,” her top campaign advisers and liberal allies openly mocked Catholics, Southerners and a host of other groups, according to newly released emails that offer a stunning window into the vitriol inside the Clinton world less than a month before Election Day. The emails, published by WikiLeaks after a hack of Clinton campaign chairman John Podesta’s private account, also show Clinton campaign officials and Democratic leaders disparaging supporters of Sen. Bernard Sanders as “self-righteous” whiners, calling Hispanic party leaders such as Bill Richardson “needy Latinos,” labeling CNN anchor Jake...