In 1936, the Supreme Court declared the AAA to be unconstitutional for technical reasons; it was replaced by a similar program that did win Court approval. Instead of paying farmers for letting fields lie barren, the new program instead subsidized them for planting soil enriching crops such as alfalfa that would not be sold on the market. Federal regulation of agricultural production has been modified many times since then, but together with large subsidies the basic philosophy of subsidizing farmers is still in effect in 2015.