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 victory must be allowed to rest for the moment with those who have destroyed the Republic. Other means must be sought to safeguard the nation's right." After this point many of the republicans were arrested in Free State "round ups" when they had come out of hiding and returned home. De Valera remained in hiding for several months after the ceasefire was declared; however, he emerged in August to stand for election in County Clare. Making a campaign appearance in Ennis on 15 August, de Valera was arrested on the platform and interned at Arbour Hill prison until 1924. After