KAI RYSSDAL: David Frum has been a regular commentator for this program for years, offering the voice of the political right against Robert Reich and the views of the political left. It's been, for the most part, a mutually agreeable relationship. We alienate different segments of our audience every other Wednesday.

A couple of months ago, though, David came to us and said, "I'm not the right guy anymore. What I think doesn't match up with some of the more robust voices in the Republican Party today." So as a way to say goodbye we thought we'd have him on to explain. ... So why this move? Why is this no longer a good fit for you?

FRUM: Well, we've been doing a point/counter-point here between me and Bob Reich for a couple of years. And it's been a lot of fun. I've certainly learned a lot from it. But I think that there's a kind of expectation that when you do it that you represent the broad point of view of your half of the political spectrum. And although I consider myself a conservative and a Republican, and I think that the right-hand side of the spectrum has the better answers for the long-term growth of economy -- low taxes, restrained government, less regulation -- it's pretty clear that facing the immediate crisis -- very intense crisis -- I'm just not representing the view of most people who call themselves Republicans and conservatives these days.

[Nice intro for the one they get to replace him.]