I think the repubs are already doing it.
Pat Roberts (head of the intel committee) said he was going to publish all the statements made by the left about WMD - and he commented that the left's statements about the WMD in Iraq over the years were more compelling than anything the Bush admin has said about it - and the left was saying it long before Bush took office [paraphrase].
I remember when he said it - Rush was whooping it up. On Rush's website - a list of the left and their statements. Also, you can go to the RNC.com website and see their list.
He had admion and dem statements without attribution. that' when the dems balked. they didn't like that.