Good for Pelosi. That's what she should be saying.
She wants to set the Congressional agenda, not let the Republican trolls do it.
There's no doubt in my mind that she is correct about what happened at the 2002 briefing. The CIA, which conducted the briefing, has been unable to produce any notes that refute what Pelosi is saying.
Until either side can produce definitive notes there is nothing to talk about, except "he said, she said". Only a Truth Commission can prove who is right, and I don't think the GOP would benefit from that kind of full-scale investigation.
The Republican Troll Machine thinks they have an issue here, but they don't. I don't think America is ready to let Newt Gingrich start running the show again.