Newt Gingrich knows that the nominating process in the Republican Party is a sham right now. It is a carefully constructed farce that bears no resemblance to democracy or democratic ideals. He knows that he and Rick Santorum and Ron Paul could continue well into the summer and that they would easily deny Mitt Romney the delegates that he needs to seal the deal.
But, of all of the nominees, past and present, none have the gall of Gingrich. None operate on pure bile on hatred like he operates. There isn't anyone in politics today who has that special combination of delusion, incompetence, and luck that Gingrich possesses. And he will never leave the room. He will stop running, but he will never stop plotting the demise of his enemies.