this non-recognition, Sinn Féin had abstained from taking any of the seats they won in the British or Irish parliaments. At its 1986 Ard Fheis, Sinn Féin delegates passed a resolution to amend the rules and constitution that would allow its members to sit in the Dublin parliament. At this, Ruairí Ó Brádaigh led a small walkout, just as he and Sean Mac Stiofain had done sixteen years earlier with the creation of Provisional Sinn Féin. This minority, which rejected dropping the policy of abstentionism, now distinguishes itself from Sinn Féin by using the name Republican Sinn Féin (or Sinn Féin Poblachtach), and maintains that they are the true Sinn Féin. Adams' leadership of Sinn Féin was supported by a Northern-based cadre that included people like Danny Morrison and Martin McGuinness. Over time, Adams and others pointed to republican electoral successes in the early and mid-1980s, when hunger strikers Bobby Sands and Kieran Doherty were elected to the British House of Commons and Dáil Éireann respectively, and they advocated that Sinn Féin become increasingly political and base its influence on electoral politics rather than paramilitarism. The electoral effects of this strategy were shown later by the election of Adams and McGuinness to the House of Commons. Voice ban Adams's prominence as an Irish republican leader was increased by the 1988–94 British broadcasting voice restrictions, which were imposed by British Prime Minister Margaret Thatcher to "starve the terrorist and the hijacker of the oxygen of publicity on which they depend".<ref>Edgerton, Gary Quelling the "Oxygen of Publicity": British Broadcasting and "The Troubles" During the Thatcher Years, The Journal of Popular Culture, Volume 30, Issue 1, pp. 115–32.</ref> Thatcher was moved to act after BBC interviews of Martin McGuinness and Adams had been the focus of a row over an edition of After Dark, a proposed Channel 4 discussion programme which in the event was never made. While the ban covered 11 Irish political parties and paramilitary organisations, in practice it mostly affected Sinn Féin, the most prominent of these bodies. A similar ban, known as Section 31, had been law in the Republic of Ireland since the 1970s. However, media outlets soon found ways around the bans. In the UK, this was initially by the use of subtitles, but later and more often by an actor reading words accompanied by video footage of the banned person speaking. Actors who voiced Adams included