Is there a similar survey of Dem voters with the same questions? One of the comments in the article points out that “don’t know” could simply reflect respondents who lacked knowledge on the provisions of the act.

And I’d be curious how that would be reflected in the Dem primary voters.

From all the surveys bouncing around I get the impression that roughly 25% of respondents to any question would be ignorant of the knowledge needed to make an intelligent response to the question regardless of political affiliation.