They do not generally support it because it means they'd have to give up something they fought hard to get at the bargaining table: https://archive.thinkprogres

They do not generally support it because it means they'd have to give up something they fought hard to get at the bargaining table: https://archive.thinkprogress.org/what-unions-think-about-medicare-for-all-2cffd87d7814/ https://archive.thinkprogress.org/what-unions-think-about-me... Some definitely support it, but many big unions don't.