WTF is "Judas law"? Are you trying to say "Jewish law"?
And yeah, if the preachers are able to start campaigning for their candidate from the pulpit, expect religion to creep into our government and take over.
"Judas" means Jew, so what's the problem?
Most church pastors avoid politics and the Bible because they want their sermons to be non-offensive to everyone, so there's won't ever be many pastors engaged in endorsing candidates, except in churches where the whole congregation is going to vote that way, anyway.
I'm sorry to hear the Free Speech terrifies you. You don't feel comfortable unless you're in chains.