Ireland election: Incumbent center-right parties likely to retain power, but left-wing Sinn Fein holds water / Crime boss takes on Sinn Fein leader and Brussels veteran in Dublin election / Sinn Fein leader will demand referendum on Irish unity if she wins election / Questions for Sinn Fein after more revelations / Does Sinn Fein rise bring Irish unity any closer? / Sinn Fein leader has 'no plans to step down' after election / 'Words are not enough' from US on Middle East conflict, says Sinn Fein leader / Caoimhe Archibald: Sinn Fein minister seeks clarity on 'repackaged' funds / British and Irish governments play down Sinn Fein's calls for united Ireland / 'Hugely significant': Analyst on Sinn Fein minister