USA Today Finds Dem-GOP Approval Margin Too Close; Finds 'Better' Data Elsewhere

Monday's USA Today piece by Richard Wolf on congressional and presidential approval ratings had this odd segue:

Although just 30% of those polled give Democrats in Congress good marks, they favor the party by a 53%-40% margin in next year’s elections. That represents a silver lining for Democrats, who achieved only a fraction of their ambitious agenda after taking over Congress.

It’s odd because Wolf doesn't indicate how many of those polled gave Republicans in Congress good marks. It's even odder that the 53%-40% election margin Wolf cited is nowhere to be found in the survey detail. Also, neither the article nor the survey detail have an external link to information relevant to this margin.

http://www.bizzyblog.com/2007/12/20/couldnt-help-but-notice-122007/