Why Is Obama so Nasty and Vulgar?

"Rude, insulting language about Romney (“bullsh****r) from the president.  Vulgar sexual innuendo, aimed at seducing young women to vote for him.  The vice president asking a bereaved parent about the size of his murdered son’s testicles.  It’s quite a spectacle.  We’re a fractious people, and our politics have always been full of colorful language, but I can’t recall the current depth of vulgarity.  The “politics of personal destruction” have gotten uglier.  Does it mean anything?  Should we try to understand it?"     [PJ Media]