Here are the poll results, asking Americans a number of questions, mostly on foreign policy.
I find Q63 and Q64 most interesting. 63 was "Do you believe that the following statement is true or not true? "Iraq had weapons of mass destruction when the United States invaded in 2003."
Iraq had no such weapons, but 14.9% of Democrats compared to 62.9% of Republicans answered true. Independents, of course, were in-between these figures.
Q64 was "Which of the following statements best describes your views on whether Barack Obama was born in the United States or another country?"
He was born in Hawaii, of course, but 74.9% of Democrats agree that he was, compared to 19.1% for Republicans.
Curiously, in Q4, Republicans say they "follow news about world affairs and foreign policy issues" more closely than Democrats. Right... I guess it depends on what your definition of "news" is.
So, thoughts on these findings? Even if you're a Republican yourself, you should admit that this is rather discouraging for your party. Pride combined with misinformation seems rather dangerous to me.