It would be nice to be able to see the demographic and party affiliation breakdown, but not worth the money to subscribe.:)
The number of Americans who consider themselves Republicans fell for the second straight month while the number of Democrats held steady.
During July, 34.9% of Americans considered themselves Republicans. That’s down from 35.4% in June and from 35.7% in May.
The number of Democrats held steady at 34.0%. That marks a partial recovery for the president’s party. In February, just 32.4% described themselves as Democrats, the lowest level ever measured by Rasmussen Reports. Still, while the 34.0% figure is the best for Democrats in 2012, it’s down from earlier years. "-Rasmussen Reports