Several years ago, the Washington Examiner published a special report whose title posed this question: Who controls the Democratic Party? The answer developed in the six-part series was summarized this way:

“Class-action trial lawyers, Big Labor union leaders, Big Green environmentalists, and Big Insiders with billions of dollars in personal wealth and foundation grants — together essentially dictate what Democrats can and cannot support on many key public policy issues. Call them the Four Horsemen of the coming Democratic apocalypse.