Just because he attended school with Bill Clinton?
Well, he was also in the same class as Ollie North ... and Jim Webb.
None of which really means much anything, except maybe to remind people that automatic association base on who and who went to the same school at the same time is a pretty silly exercise.
After all, G.W. Bush and John F. Kerry were classmates also (plus Al Gore, also attended Yale with W. and Kerry around the same time)