A lot of Democrats identify as "born again Christians."
2% of the respondents claimed to be democrats and their poll numbers were negligible. 22% claimed to be Independents which Trump took over Rubio at 33% to 19%.
If this is a poll, I'm not sure it's very helpful. What I mentioned earlier are the actual voter records. They can be tabulated so there is no guess about how many Democrats and Independents voted.
At least that's how it's done in my state. I've gotten the voting records of who voted in elections many times. You don't have to guess or "Poll" people to get the straight scoop.
I find the number 2% Democrat to be completely bogus. I do not believe that only 2% of the voters were Democrat. The number must have been much higher judging by everything i'm reading about Trump's appeal to various Democrat demographics.