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 when the net balance arrived in Ireland. Recognition was not forthcoming in the international sphere. He also had difficulties with various Irish-American leaders, such as John Devoy and Judge Daniel F. Cohalan, who resented the dominant position he established, preferring to retain their control over Irish affairs in the United States. Meanwhile in Ireland, conflict between the British authorities and the Dáil (which the British declared illegal in September 1919) escalated into the Irish War of Independence. De Valera left day-to-day government, during his eighteen-month absence in the United States, to Michael Collins, his 29-year-old Minister for Finance. De Valera