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
Clinton Fein Court for the Northern District of California made a divided decision on the lawsuit. Fein filed an Supreme Court appeal, which he won in 1999. In June 1999, the U.S. government sent Fein an order to reveal a user of Annoy.com's e-card service. Earlier, in April 1999, the University of Houston tried unsuccessfully to obtain the website's records. The government later ordered Fein to stop discussing details of this investigation, its existence or its application. In "United States v. ApolloMedia", Fein argued that this gag order violated the First Amendment and the statutory requirement that it have a definite duration.