To come at it from the other side, UBI is sold as a replacement for a number of other social programs. I find it very hard to believe that, in the US at least, any of those other social programs would be dismantled and stay dead. It is more likely that UBI would temporarily replace one or two programs in the social safety net before being supplemented with two or three more new ones.

As both US parties currently have significant trust issues with one another, I would say UBI is a complete non-starter.