From his notes:
1. Here is a very good question on this survey. (p. 25) (Paraphrase) Do you consider yourself a Born-again Christian? 66% say No.
The next question. What is your religious preference?
Almost as many "athiests" as Catholics taking this survey, and this is not a true survey of Catholics (Which is the impression that the story gives).
And no breakdown of the questions by religious preference. For example, How did Catholics, as a group, answer this question? Or Protestants? We do not know.
The question asked also did not pertain to religious freedom or first amendment rights, it was strictly about birth control.
There is also a question about who these respondants voted in '08. 41% Obama to 30% McCain. (This should really raise red flags, Obama did not beat McCain by 11 percentage points in '08). (Page 24)
2. On the same page (page 24), 68% of those respondents are not supporters of the Tea Party (Which is far above the national average). This is a huge red flag. This survey really needs some scrutiny when you look at it all, the demographics make this survey very questionable.
3. And on page 27 (contrary to what it says on the cover of the survey.)
This survey is weighted heavily democratic.