Warren Buffet (an Obama supporter) suggested that the financial backers of John Edwards should consider a class action lawsuit against their candidate. Edwards knew his liason would sink his chances, yet he continued to take money for his campaign. This is clearly bad faith.
I realize that this chances of a successful suit may be small, but the idea of a guy who made a fortune on such lawsuits getting a taste of his own medicine is just too appealing. Buffet noted that there are a lot of class action suits filed that have far less basis.