Éamon de Valera new line. However, a vote to accept the Free State Constitution (contingent on the abolition of the Oath of Allegiance) narrowly failed. Soon afterward, de Valera resigned from Sinn Féin and seriously considered leaving politics. However, one of his colleagues, Seán Lemass, convinced de Valera to found a new republican party. In March 1926, with Lemass, Constance Markievicz and others, de Valera formed a new party, Fianna Fáil ("The Warriors of Destiny"), a party that was to dominate 20th-century Irish politics. While Sinn Féin still held to an abstentionist line, Fianna Fáil was dedicated to republicanising the Free State from
Éamon de Valera recommend the Treaty to Dáil Éireann; the Treaty was finally signed by the delegates after further negotiations which closed at 02:20 on 6 December 1921. De Valera balked at the agreement. His opponents claimed that he had refused to join the negotiations because he knew what the outcome would be and did not wish to receive the blame. De Valera claimed that he had not gone to the treaty negotiations because he would be better able to control the extremists at home, and that his absence would allow leverage for the plenipotentiaries to refer back to him and not be