Little Crow tried to adapt to customs of the United States. He visited President James Buchanan in Washington, D.C., replaced his native clothing with trousers and jackets with brass buttons, joined the Episcopal Church, and took up farming. However, by 1862, his band was starving. Crops had failed on their small reservation, game was overhunted, and Congress failed to pay the annuities mandated by treaty. Payments were delayed because of the outbreak of the American Civil War. As the tribe grew hungry and as food languished in traders' warehouses at the Sioux agencies, Little Crow's ability to restrain his people deteriorated.