Original: 12 September 2002 President of Sinn Féin In 1978 , Gerry Adams became joint-vice-president of Sinn Féin and he became a key figure in directing a challenge to the Sinn Féin leadership of President Ruairí Ó Brádaigh and joint-Vice President Dáithí Ó Conaill .
Simplified: 12 September 2002 President of Sinn Féin In 1978 , Gerry Adams became joint-vice-president of Sinn Féin and he led a challenge to the Sinn Féin leadership of President Ruairí Ó Brádaigh and joint-Vice President Dáithí Ó Conaill .