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 84, until 2013 a world record for the oldest elected head of state. At his retirement in 1973 at the age of 90, he was the oldest head of state in the world. As President of Ireland, de Valera received many state visits, including the 1963 visit of U.S. President John F. Kennedy. Five months later de Valera attended the state funeral for Kennedy in Washington, D.C. and accompanied a group of 24 Defence Forces cadets who performed a silent drill at his grave site. In June 1964, he returned to Washington, D.C. as the second President of Ireland to