In the message she emailed out to supporters, widely reported today, she wrote: "I take responsibility for my vote."

You take responsibility for mistakes. And unless she's reminding us that she, and not Bill Frist, physically cast her vote, that's what she's doing there. For the first time.

The Times kind of buried the story, and I'm not sure they or anyone else noted the importance of this shift.

But this is a subtle, important advance. She's said in the past that, had we known then what we know now, there never would have been a vote. Now, for the first time, she says she should have voted "No."

"[I]f Congress had been asked, based on what we know now, we never would have agreed" to give the president the authority to go to war, she wrote yesterday.