In Wisconsin (still America's Dairyland), oleomargarine was outlawed until the early 70's. There was a State Senator from Darlington named Gordon Roseliep who made a huge name for himself every year by arguing passionately about all of the perceived evils of the dreaded white stuff with the little yellow dye packet. A lot of folks made regular "butter runs" (for fun and profit)to Illinois and Minnesota to smuggle cartons of the stuff back into the Wisconsin.

Incidently, Roseliep was also the legislator who once argued against allowing pharmacies to display any contraceptive information, advertising, or items where customers (of any age) could see them. He reasoned that if poor folks learned about these immoral things, they would quit having kids and the military would run out of people to draft (the man actually said that on the floor of the Senate in open session).