Answer: Congress passes a law that regulates the amount of lettuce that can be grown on a farm. Milton is a farmer who grows lettuce. he grows more lettuce than is allowed under the new law and is fined. he sues to have the law declared unconstitutional, arguing that he grew the allowed amount for sale and then grew some extra for his family to use in personal consumption. the federal courts are likely to declare the law constitutional because Milton's actions substantially affect interstate commerce. Interstate commerce refers to the sale and purchase of commodities between different states.