Here are a few snippets from the interview:
http://www.npr.org/templates/story/story.php?storyId=122823118Mr. GINGRICH: Well, the president was elected in part by labor unions who massed their resources of people, who have no choice but to have their money taken out of their dues. The president spent money that was donated through to a variety of organizations, including MoveOn.org, by very, very rich people.
<snip>
Mr. GINGRICH: Im saying that it allows you to have a middle-class candidate go out and find allies and supporters who are able to help them match the rich. And able to help them match the incumbent. Remember, incumbents run with millions of dollars in congressional staff, congressional franking, congressional travel. And they have all the advantages of being able to issue statements from their incumbent office. And the challenger - the person out there who's the citizen who's rebelling, who wants to change things - is at an enormous disadvantage in taking on incumbents.
This will, in fact, level the playing field and allow middle-class candidates to begin to have an opportunity to raise the resources to take on the powerful and the rich.
<snip>
I do think this ruling makes it easier for, you know, pro free enterprise conservatives who are critical of government to acquire the resources to take on very, very wealthy liberals who want to buy seats.