Unions has not broken any law, like how a company should dictate who their employees should vote for. Every union member has an independent right to make their own choices. Union members as I understand, only vote where their money is at. If a candidate say what the union members like to hear or like how the candidate can benefit them, they will support that candidate. I've never heard of Unions threatening to fire union members if they vote for a candidate the union isn't in favor off.