Actually, here are the detailed poll results from the pollster's site. It has the 829-voter sample breaking down 32.7% Democrat, 34.1% Republican, and 33.2% Independent.
Public Policy Polling published another poll of 500 likely Missouri voters on the evening of August 20th
. It showed Akin up by a point, at 44% to 43% for McCaskill. 49% of the respondents said they voted for McCain in 2008 vs 44% for Obama and 7% other/don't remember. 30% claimed to be Democrat vs 39% Republican and 32% independent.
Most recently, PPP did a poll of 621 likely Missouri voters on August 28th and 29th
. It had McCaskill up a point at 44% to 43% for Akin. The 2008 vote numbers were the same as their August 20th poll: 49% McCain, 44% Obama, and 7% irrelevant. However, the reported party affiliation was a little more even: 33% Donk, 35% GOP, and 32% indy.
If the PPP numbers are accurate, it would seem the Wenzel sampling is more than fair as to party affiliation. Could McCaskill still be toast, despite the best efforts of the GOP-E?
Could be (one small step for a stauch Conservative, one cave-in misstep for GOP elites); maybe.