A recent poll seems to have slipped under the radar except in academic circles, or maybe I just missed it:

A few months ago, the Tobin Project sponsored a YouGov poll to be put in the field on American attitudes towards foreign policy and national security. Dartmoth political science Benjamin Valentino conducted the poll....

You can look at all of the topline results here, with party-line breakdowns to the responses....

There's a lot in this poll that might be of interest to you, depending on your interests, but (via Jim Lobe) I'd just like you to know that 63% of Republicans still think Iraq had WMDs in 2003