I did a Google search and all I could find were stories from a few months ago about the UAW endorsing Clinton.
So what's up with the claim that there's been a UAW endorsement of Donald Trump? I've seen no such news.
The Revolution is ON!
Vote Trump!
I believe it was a UAW member who came out for Trump, not the union itself. Significant only in that it suggests that other rank and file UAW members may be going against their bosses and supporting Trump.