Troy, if you want to post a link to my recent article at RealClearReligion on "Pulpit Freedom Sunday," here they are. Here's a short teaser from the piece:

http://www.realclearreligion.org/articles/2012/10/04/before_you_politicize_the_pulpit.html

But the further the minister of the word ventures from the claim of "thus sayeth the Lord," there is a spiritual and political price to be paid. We risk squandering moral authority and offending the politically disaffected. The Gospel we are commanded to preach to all reaches a precious few, and the heavenly respite of worship becomes a good bit more earthly. Almost a century ago, J. Gresham Machen voiced a similar concern with the rise of politically progressive pulpits:

The preacher comes forward...not with the authority of God's Word permeating his message, not with human wisdom pushed far into the background by the glory of the Cross, but with human opinions about the social problems of the hour or easy solutions of the vast problem of sin. Such is the sermon. Thus the warfare of the world has entered even into the house of God, and sad indeed is the heart of the man who has come seeking peace.

The minister doesn't speak for himself; the title means "servant." Perhaps preachers should ask themselves, before they step up to the pulpit this Sunday, whether they'd feel comfortable reading on behalf of their boss the standard campaign disclosure when they're finished:

"I'm Jesus Christ, and I approve this message."