It is an attempt to assure prosperity. Henry IV wished it for the peasants. A wish for food. (a chicken in every pot) The Republican party later used it but added "a car in every garage." Assuring not only prosperity but decadence.
Herbert Hoover "A chicken in every pot and two cars in every garage" The phrase is a chicken in every pot and a car in every back yard to boot. Herbert Hoover did not say it. This was campaign...