OUCH:

Here’s how “presidential historian” Douglas Brinkley figures it: Various factual inaccuracies and contradictions in Tour of Duty, his famously sycophantic biography of John Kerry, are frequently cited by opponents of Kerry’s presidential campaign. On the other hand, the sycophantic parts of the book are just as frequently cited by Kerry’s friends. In other words, both parties find his work useful. And what better proof of his academic objectivity and integrity could there be than that?

I mean, seriously: Ouch.

UPDATE: More on Brinkley from Ann Althouse.