What is the Role of Pastors in Presidential Campaigns?

My reply at Faith in Memphis: http://faithinmemphis.com/2012/03/02/pastors-should-model-what-to-assess-in-choosing-a-candiate/ The link I provided them to a post I wrote on this blog in December ("How Then Should We Vote?") wasn't included in the Faith in Memphis post but can be accessed here: http://colehuffman.blogspot.com/2011/12/how-then-should-we-vote.html