Comhairle na dTeachtaí Council of State, had Éamon de Valera as President. In 1926 de Valera resigned as President, left the Sinn Féin party and founded Fianna Fáil, which in 1927 entered the Fourth Dáil. Comhairle na dTeachtaí, never more than a symbolic body, was thereby rendered defunct. In 1930 Cumann na nGaedheal TDs alleged in the Dáil that de Valera had addressed Comhairle na dTeachtaí in December 1926, after the foundation of Fianna Fáil; this was to cast aspersions on de Valera's commitment to the Constitution of the Irish Free State. Comhairle na dTeachtaí Comhairle na dTeachtaí was an Irish republican parliament
Éamon de Valera the work of Michael Collins and based on three sources: British oaths in the dominions, the oath of the Irish Republican Brotherhood and a draft oath prepared by de Valera in his proposed Treaty alternative, "Document No. 2"). De Valera began a legal case to challenge the requirement that members of his party take the Oath, but the assassination of the Vice-President of the Executive Council (deputy prime minister) Kevin O'Higgins on 10 July 1927 led the Executive Council under W. T. Cosgrave to introduce a Bill on 20 July requiring all Dáil candidates to promise on oath that if