Northeastern Oregon settlers prevailed upon the Congress to overturn President Ulysses S. Grant's pact to let the Nez Perce stay in Wallowa. On June 13, 1877 Chief Joseph went on the warpath. After refusing to move 500 of his people from their high mountain meadow in the Wallowa Valley to the Fort Hall Reservation in Idaho, he killed four white men. (The reservation was to have included Camas Prairie, but due to a clerical error, did not.) The Paiute, who had been leaving the Malheur Reservation to escape Rinehart and starvation, returned en masse, knowing they would be safer at the reservation during wartime.