May be related to the Kennedys - the Shriver family is from Maryland. For that matter, Nancy Pelosi is from Baltimore (part of the D'Allesandro clan).
Of course, Clinton went to Georgetown in DC back in the 60s. He could have sired several lines of bastards during weekend wildings across the border in PG and Montgomery County.
Whether it's the California air or those early years of drinking Inner Harbor water in Little Italy that put the zap on her brain remains a mystery. Maybe Art Bell could look into it.