Sinn Fein win more votes than any other party in Irish election

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A revolution in Irish politics as Sinn Fein win more votes than any other party in Irish election. But does it really bring Irish unity any closer? DUP MP Sir Jeffrey Donaldson, Fianna Fail's Eamon O'Cuiv, UUP MLA Steve Aiken, commentator Patricia MacBride and Slugger O'Toole editor Mick Fealty discuss.