The Liberal leader, Lloyd George, led a small group of Independent Liberals, opposing the National Government. That left Samuel effectively as leader of the parliamentary party and in control of party headquarters. The government's moves to introduce tariffs caused further friction for the Liberals, and Samuel withdrew the party from the government in stages, first obtaining the suspension of cabinet collective responsibility on the matter to allow Liberal members of the government to oppose tariffs. In October 1932, the Liberal ministers resigned their ministerial posts but continued to support the National Government in Parliament. Finally, in November 1933, Samuel and the bulk of the Liberal MPs crossed the floor of the House of Commons and opposed the government outright. He remained leader of the Liberal Party until he again lost his seat in 1935.