@SC,
A partially fair point, but he did not speak the words in a vacuum. Already "separation of church and state" meant something more than just the exposition that here followed, so I think he has to be interpreted as endorsing all that that entailed.
Anyway, no, I think it makes perfect sense, in a given context, for a religious leader to tell his flock "how to vote." It simply doesn't make sense to regard this (voting) as the one action in life that has no moral or religious significance.
I do agree that no church should be granted political funds; I think the same about schools except in a voucher scenario where it is the parents directing the money. And as for no man being denied office -- sure, I don't think anybody should be denied office "merely because his religion differs." On the other hand, it's certainly something I'm going to take into account. I probably won't be voting for a scientologist any time soon. (And sure, maybe I could be convinced otherwise, but given what I think at the moment, I would view that as reckless behavior).
@YJ: some laws, sure. And so would I. All of them? I highly doubt it. He is not a theonomist, at least so far as I know.