Leader of Sinn Féin joined opposing sides with De Valera leading the Anti-Treaty faction, while Griffith joined the Pro-Treaty faction, which later became Cumann na nGaedheal. De Valera’ successor John J. O'Kelly was one of four leaders who served for brief periods of time as Sinn Féin’s party membership declined in favour of Fianna Fáil and Fine Gael. In 1937, Margaret Buckley became the first female President of Sinn Féin. During her thirteen years as leader, she vastly improved the relations between the IRA and the party. She was succeeded by Paddy McLogan and Tomás Ó Dubhghaill who both helped rebuild party support in
Fianna Fáil fraction rises in Dublin with the exception of Dublin West, the former seat of both Brian Lenihan Snr and Brian Lenihan Jnr. Fianna Fáil is seen as a typical catch-all party. R. Ken Carty wrote of Fianna Fáil and Fine Gael that they were 'heterogeneous in their bases of support, relatively undifferentiated in terms of policy or programme, and remarkably stable in their support levels'. Evidence from expert surveys, opinion polls and candidate surveys all fail to identify strong distinctions between the two parties. Many point to Ireland's civil war politics and feel that the basis for the division is