From the September 22 New Yorker:
According to “Sarah,” a biography by Kaylene Johnson, Palin had got into politics after she befriended the man who was then mayor and his police chief at a step-aerobics class. She made them her allies and ran for City Council. Then she challenged them for control of City Hall, and drove them out.
And you thought step class was just about keeping fit.
Thanks for the article, Matt!