Following the election, Faulkner accused members of the True Whig Party government of using slave labour at home and selling slaves to the Spanish colony of Fernando Po, as well as involving the Army in the process. Despite the government's denials and a refusal to cooperate, the League of Nations established the "International Commission of Inquiry into the Existence of Slavery and Forced Labor in the Republic of Liberia", under the chairmanship of British jurist Cuthbert Christy to determine the extent of the problem. American President Herbert Hoover briefly suspended relations to press Monrovia into compliance. In 1930 the committee's report was published, and although it could not substantiate charges of slavery and forced labor, it implicated government officials, including both King and vice president Allen Yancy of profiting from forced labor, which it equated to slavery. There were also suggestions about putting Liberia into trusteeship. As a result, the House of Representatives began impeachment procedures against King, who quickly resigned. He was succeeded by Edwin Barclay. Faulkner contested the 1931 elections, but lost again.