At least he fits many of the traits.
See for yourself. Excerpted from the following website...
http://faculty.ncwc.edu/toconnor/428/428lect16.htm
here is a List of Common Psychopathic Traits
Glib and superficial charm; Grandiose sense of self-worth; Need for stimulation; Pathological lying; Conning and manipulativeness; Lack of remorse or guilt; Shallow affect; Callousness and lack of empathy; Parasitic lifestyle; Poor behavioral controls; Promiscuous sexual behavior; Early behavior problems; Lack of realistic, long-term goals; Impulsivity; Irresponsibility; Failure to accept responsibility for own actions; Many short-term marital relationships; Juvenile delinquency; Revocation of conditional release; Criminal versatility
My untrained eye finds Mister Kerry to have quite a few "matches" to the above. Perhaps you agree?
And this (to use his term) "nut job" came within a few electoral votes of winning.
Vewwy skewwy, n'est ce pas?