Post a link to the poll showing Graf down 19 points last week please. I am not aware of any that showed that.
I don't slavishly report these like you do. There was one showing him down 19, so he has cut the lead by 1/3.
http://www.giffordsforcongress.com/2006/09/20/gabrielle-giffords-leads-randy-graf-by-19-points/