Listening to the political circus unfolding today, you hear frequent allusions to God/faith/religion/fairy tales on a regular basis. It doesn’t matter that faith ought to be divorced from political action; candidates throughout history have made it a point to pander to the believers. It’s seen as a function of electability. It’s been about appealing to the “likely voter.”
What is a “likely voter” in U.S. polling? That depends on what poll you’re looking at. A company like Gallup attempts to ascertain whether an individual is likely to vote based on voter registration and a series of questions about political awareness and engagement. Others rely on voter registration alone. Still others look at only those who were willing to vote in the past or rely on trends in terms of voter turnout according to demographics.