Check out that poll for the 2004 Congressional election. It proves your point; look at the lead the Dems had even close to the election. That they're down to 9 points in August must be making them shake in their boots.
I just checked a few sites that trumpeted "gloomy prediction for GOP in November" stories not long ago--funny, none of them are posting THIS story...
Thank you for going back to the 2004 stats.
I wrote you my response because I saw that stats 18 months ago. However, there is a difference because Bush was than on the Ballot, 11 states had moral ballot questions, etc. What will be the motivator for Republicans this time around. The base is turned off because of the notion that the Republicans are cooked.
Maybe they are.