Rove or Truth: Pick One

GrrlScientist has a TV exchange between Diane Sawyer and Tony Snow:

Diane Sawyer: Why not let Karl Rove go up there and show he has nothing to hide? Testify, under oath, and with a transcript? Let everyone see it?

Tony Snow: This is what I love, this Karl Rove obsession. Let’s back off. First, the question is: Do you want Karl Rove on TV, or do you want the truth?

Diane Sawyer: Why can’t you have both?

I’m surprised. Apparently Diane Sawyer doesn’t know who Karl Rove is.