Does your religious beliefs, play a part in who you would vote for?

In the election season, we hear a lot from the political candidates about their social and economic views. We also hear about their religious beliefs. Based on the Constitution, religious affiliations has no place in politics. But, we all know that politicians use their beliefs as a strategy while campaigning. Republican Candidate Ben Carson, came out a few weeks ago, and said that he'll never vote for a Muslim President. Does your religion play a part in who you vote for? Do you believe that the two should be separate, and are separate?