Unions use PACs to give money to candidates, it is voluntary contributions from members, not dues money. Better go read the Landrum-Grifith Act.
Unions can use dues money for political education, and that all.
But you wont ever get that, cause you hate unions yet you like the money you got paid from the company, and they didnt give it to you out of the kindness of their hearts.
Oh so they use a middle man to get around it. Gotcha!! As for the money I get paid by my company I earn it and then add wealth to the company so they can afford to pay me and prosper. You may want to read the founding fathers writings to get a better handle on this democracy thing and put down Karl Marx's diary.