If you look at the list most of the top donors are unions and they are donating exclusively to democrats. The IRS is working on rules that would strictly limit the ability of 501(c)(4) tax-exempt organizations, including grassroots conservative political action committees, from engaging in voter registration drives, get-out-the-vote efforts, and certain other activities in the months leading up to federal, state, and local elections. Unions have no such restrictions. The IRS has become an arm of the Democratic Party.
Yup. But Citizens United is almost as evil as the Koch boys. Unions? What unions? i.e. “Look over there.” Madest thou look. So endeth the joke.