Historically Feinstein has been a huge fan of Duke (the basketball team) but not so hot on Duke (the university). He still seems to be anti-UNC (the basketball team) and anti-Kentucky (the basketball team), so if he doesn't like Duke basketball, who does he like?
This is pretty much my point of view as well, although my attitude towards Duke (the university) is closer to ambivalence than outright hatred. But people are allowed not to like the place that gave them a degree. It doesn't mean you hated college or got nothing out of it -- by any account, Feinstein got a lot out of attending Duke. If it reveals a balanced view on a subject (one's alma mater) which most people are strongly biased in favor, so much the better.