Barack Hussein Obama is an archetypal liberal case study. Obama, William Jefferson Clinton, Albert Arnold Gore, John F. Kerry and, of course, Edward "Chappaquiddick" Kennedy, all share a common ailment -- what I have aptly described in some detail as the Pathology of the Left.
Leftists are uniformly defined by their hypocrisy and dissociation from reality. They speak of unity, but they foment division, appealing to the worst in human nature by separating Americans into dependent constituencies. They support freedom of thought, unless those thoughts don't comport with theirs. They feign tolerance while practicing intolerance. They resist open discussion and debate of their views, yet seek to silence dissenters. They protest for natural order while advocating for homosexuality and abortion. They assert their First Amendment rights, except, of course, when it comes to religion, whence they impose the doctrines of secular atheism on everyone else. They decry SUVs, except those that they own. They advocate mass transit but commute on private jets. They believe trial lawyers save lives and doctors kill people. They believe the solution to racism is to treat people differently on the basis of the color of their skin rather than the content of their character. They deride moral clarity because they can't survive its scrutiny.
Narcissistic Personality Disorder is defined as:
The diagnostic criteria for NPD includes a "pervasive pattern of grandiosity (in fantasy or behavior), need for admiration, and lack of empathy, beginning by early adulthood and present in a variety of contexts," which manifests as "a grandiose sense of self-importance (e.g., exaggerates achievements and talents, expects to be recognized as superior without commensurate achievements);" "a preoccupation with fantasies of unlimited success, power, brilliance, beauty, or ideal love; and a belief that he or she is 'special' and unique and can only be understood by, or should associate with, other special or high-status people (or institutions)," and the subject "lacks empathy: is unwilling to recognize or identify with the feelings and needs of others...shows arrogant, haughty behaviors or attitudes."