IMO, Any organization that accepts a tax exempt status by agreeing to avoid advocating for any specific canidate, and then breaks that agreement should lose their tax exempt status. I don't care if it's a church or a union.
Side note, why the hell are unions able to use charity tax exempt status?
Because they can. and obama IRS made it easier for them
IRS Form 990, 990 EZ, and 990-N Rule Changes
When I was in high school I worked as a clerk at sams club... The volume of people who have tax exempt status, and abuse it, was honestly suprising to me.
Lets be honest you don't want unions to lose their tax exempt status, do you?