Here's just a bit of wisdom for Christians to keep in mind -
In every election cycle, at least in living memory, we are besieged with polling data all packaged up to look very scientific about "public opinion." Apparently we need research firms and the media to tell us what we really think. But don't let "public opinion" beat you into submission. Think according to God's Word and learn from godly men, and you will be free from the tyranny of the polls.
If you want to explore this further, here's the article that spurred me to post this: "Rethinking Public Opinion" by Thomas Fitzgerald in The New Atlantis. One book published over a generation ago saw this problem clearly: The Image by Daniel Boorstin.