I'm trying to find the articles about it. I read them last night, I think on HuffPost. The donation was made by Robert Rowlings, who's actually the CEO of TRT Holdings, not just a board member.
Here's a link to the Salon.com article that includes part of several different press releases about it.
http://www.salon.com/news/politics/war_room/2010/10/25/san_francisco_gold_s_american_crossroads/index.html
Most of the Gold's Gyms are actually franchises rather than corporate owned. Four of the bay area locations are attempting to break their franchise agreements over this.