The decision of the proclamation of the Republic led to the development of a certain opposition group within People’s Party. The abolition of the caliphate on 1 March 1924 caused the opposition to expand. In the end, 32 parliamentarians, who left HF established the Progressive Republican Party (Terakkiperver Cumhuriyet Fırkası-TpCF). The “Republican” word in the name was particularly important because the founders of the Party declared that they were not against the republican regime by using this statement. On 5 May 1925, the Ankara Independence Tribunal requested that TpCF to be closed by claiming that the provincial organization of the Party was involved in Sheikh Said Rebellion and supported the rebels. On June 5, 1925, the government announced that the TpCF was closed together with all its provincial organizations. The government claimed that TpCF cooperated with reactionary powers and strived to restore the Sultanate. Many members of the TpCF were prosecuted and imprisoned. Thus, the first attempts of the transition to a multi-party period ended in a short time.