Sinn Féin for nine years. (It merged with two other organisations to form Fine Gael in 1933.) Anti-Treaty Sinn Féin members continued to boycott the Dáil. At a special "Ard Fheis" in March 1926, de Valera proposed that elected members be allowed to take their seats in the Dáil if and when the controversial Oath of Allegiance was removed. When his motion was defeated, de Valera resigned from Sinn Féin; on 16 May 1926, he founded his own party, Fianna Fáil, which was dedicated to republicanising the Free State from within its political structures. He took most Sinn Féin TDs with him.
Elections in Northern Ireland at which nationalists failed to gain any seats. 1959 The nationalist vote fell dramatically (it would take until February 1974 to regain the heights it had reached in 1955), and Sinn Féin failed to hold the seats they had won in 1955. Both their MPs had been disqualified shortly after election anyway. 1955 Sinn Fein contested the full range of seats and united the nationalist vote behind them, winning both the seats won by nationalists in 1951. Labour candidates contested only the four Belfast seats. 1951 This was the last election at which candidates stood unopposed; four Unionist candidates in