Validity of claims is one thing. Validity doesn't equal truth or objectivity. "Fake news" includes cases where the presented claims may be technically valid, but the "lie" exists in the omission of inconvenient claims which would invalidate the intended message of the story. The use of certain agreeable facts to drive a greater agenda rather than inform the viewer. Style is related, as it is the method through which a presenter can evoke a particular response in the viewing subject and entice the mind to follow along and be guided. This sort of psychological manipulation is common in people, beginning from childhood. In advanced forms, you have the con man or other such subversive entity, who has mastered the art of manipulation.