Any history nerds who can explain how electoral reforms have come about since it seems like the incentive structure is completely aligned against the politicians currently in office ever seeing a pressing need to reform elections when it was those same elections that got them elected and so therefore benefit them personally, even if they acknowledge that they are imperfect systems.
It seems impossible. Bourgeois Democracy is such an endless crock of shit from top to bottom.
union organizing isn't the be-all end-all but if they fuck over labor too many times i could see whatever the most unionized state is being a huge wedge, and union-backed independants or a pseudo-labor party taking state legislature positions in districts with high unionization. maybe a congressional rep but that's asking a lot.
I'm not sure how many unions or members are interested in liberal electoral politics though, and even if they are they'd have to build almost all org structure from scratch.