Showing there's more than one kind of pig in a bathroom stall, this ad from Stop Childhood Obesity Now that calls for Farm Bill reform takes advantage of the Larry Craig scandal to get its point across quite effectively.
From their site: “It may surprise you to learn that the federal government buys up millions of dollars worth of bacon, burgers, and fatty meat and dairy products and dumps them in our schools and food assistance programs. This practice persists, in part, because companies making these unhealthy products give millions of dollars to members of Congress through political action committees. Until these practices end, stopping childhood obesity will remain a difficult challenge.”