Planned Parenthood Advocates of Michigan basically gives money to pro-abortion candidates and does a few mailings on behalf of those candidates. They received around $50,000 so far this year from individuals.
Michigan Planned Parenthood Votes is their new super PAC which was just formed in August of 2014. According to their October quarterly report, they basically have only 1 major donor. That donor is America Votes Action Fund which is located in Washington, D.C. and gave them $425,000 this cycle after the August primary of the $430,100 direct contributions they've received. The majority of Planned Parenthood's Super PAC money has been used to pay the canvassers $12 an hour to go door to door for pro-abortion candidates. Other funds have been used for what appear to be mailing pieces and robocalls.
According to OpenSecrets.com, America Votes Action Fund gets it funds from a variety of left wing groups. Below are their leading donors.
As you can see, it is largely union money. The two top donors are the National Education Association (which gave $735,000) and American Federation of Teachers (which gave $655,000).
So union money goes to America Votes Action Fund and then gets dispersed to various state level groups, some of which have nothing to do with unions (such as Planned Parenthood) except for their Democratic Party leanings.
Every member of the National Education Association and American Federation of Teachers should be made aware their unions are contributing money to another organization which then funnels that money to pro-abortion groups with the sole goal of electing pro-abortion legislators.