Paul Krugman in today's New York Times:
Loans and Leadership
...The moral is that it’s important to take a hard look at what candidates say about policy. It’s true that past promises are no guarantee of future performance. But policy proposals offer a window into candidates’ political souls — a much better window, if you ask me, than a bunch of supposedly revealing anecdotes and out-of-context quotes.
All in all, the candidates' positions on the mortgage crisis tell the same tale as their positions on health care: a tale that is seriously at odds with the way they're often portrayed.
Mr. McCain, we're told, is a straight-talking maverick. But on domestic policy, he offers neither straight talk nor originality; instead, he panders shamelessly to right-wing ideologues.
Mrs. Clinton, we're assured by sources right and left, tortures puppies and eats babies. But her policy proposals continue to be surprisingly bold and progressive.
Finally, Mr. Obama is widely portrayed, not least by himself, as a transformational figure who will usher in a new era. But his actual policy proposals, though liberal, tend to be cautious and relatively orthodox.
Do these policy comparisons really tell us what each candidate would be like as president? Not necessarily - but they're the best guide we have.