The top 20 all time political money contributors are nearly ALL heavily democrat with 12 out of the 20 unions.
This ruling actually may level the playing field. Which is why the democrats HATE this ruling.
Heavy Hitters: Top All-Time Donors, 1989-2014
http://www.opensecrets.org/orgs/list.php
I was thinking the same thing that this ruling neutralizes the power of the unions. It is my understanding that the unions were not limited by any restrictions on campaign contributions. Now the private sector is on a level playing field with the unions thus cancelling them out.