Well he does have a J.D. from Yale, so his political/legal talents are do doubt formidable. Really, they shouldn't be exclusive. Perhaps, as a practicing pastor, one should refrain from some aspects of politics, but it would be fine if a former pastor were to become a politician of such virtue that he would not tarnish the image of the Church.
Pat Robertson is not a pastor!!!!!!!!!!!!!!! He is a TV talk show host, a businessman with a law degree. His father was also either a congressman or senator.