Not saying there aren't any but contract workers usually are getting paid because contracts are negotiated and paid well in advance. I even remember one of the shutdowns a while ago, a contractor was getting paid so they had to show up and stay in the parking lot because their building wasn't open. But they weren't allowed to stay home because the contract required them to be there.
Then talk about how bad the unknown is. And how they may be hesitant to spend money now because they dont know if they will get paid after mid January. You know, stuff that is actually true. Using this whole "they are working for free on Christmas" is nothing but a lie.