There was no tying of the job to the propoganda, it was just a list of candidates they felt would best support their interests (as a business) and therefore encourage profitiability. Profitability is one way (no guarantees) of ensuring your job security. I don't see a problem with the employer doing that. If you don't like the politics (I don't) you then have a moral quandry get of the tit or continue to suck and shut up about it.
Unions are an external organization whose purpose is to improve work conditions. In some instances I support them, in some I don't but the short is, again, it's the owners shop. He can control what comes in and out of there within the confines of the law-- meaning no Title VII discrimination. Other than that..... go get a flyer from the local union hall or your email or whatever and compare it to what your employer gave you and figure it out your damn self.
I know there is implied intimidation there but, you know, life is tough. If you manufactured widgets, would you think it in your company's best interest to have your employees in the "down with widgets" PAC voting block?
I would take offense to anyone telling, or suggesting, to me how to vote. "Implied intimidation" is as bad, if not worse, then "direct intimidation".
What if a Koch employee was fired for not voting for a "suggested" politician?