It's an outside company.
I hate how so many people just assume that the vote is rigged. Being skeptical and making sure you are aware of the process is always in order, but thinking that the vote is rigged works to no one's advantage. Well it does work to some people's advantage, but it certainly isn't yours. If people assume that it doesn't matter they are less likely to vote, and turnout is important. Besides, Hoffa is a politician. No way he'd give his many opponents (he's created more than he already had with this contract) an opening like that. If there's even the slightest hint of something fishy going on he's got hordes of guys who will pounce.