As pro-union as it gets, unfortunately. Both parties have leaned heavily into social advocacy over actual politics over the past decade, but the Rs still maintain a healthy pro-business tilt.

Very few would claim republicans to be the “pro-union party”. Actually, a “blue collar” worker today is about half as likely to be in a labor union than he was 40 years ago, so (my opinion) even your average Joe is more likely to see labor unions as greedy & pampered- essentially wanting untenable pay/benefits packages (where have we heard that before?) for doing the same work he has to do for far less. Ironically, expanding labor unions would mean more opportunities for him (rising tide), but I think fewer Americans see it that way today than in the past, which helps to explain how Rs have been able to increase their appeal to middle/low income Americans while outwardly supporting pro-corporate & pro-wealthy economic policies.