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 from June 1919 to December 1920 and had mixed success. One negative outcome was the splitting of the Irish-American organisations into pro- and anti-de Valera factions. He met the young Harvard-educated leader from Puerto Rico, Pedro Albizu Campos, and forged a lasting and useful alliance with him. De Valera managed to raise $5,500,000 from American supporters, an amount that far exceeded the hopes of the Dáil. Of this, $500,000 was devoted to the American presidential campaign in 1920, helping him gain wider public support there. In 1921 it was said that $1,466,000 had already been spent, and it is unclear