Sinn Féin must end abstentionism to achieve a united Ireland
Noel Whelan: The party needs to hurry up and take its seats in Westminster
Sinn Féin leader Mary Lou McDonald and deputy leader Michelle O’Neill. Photograph: Niall Carson/PA
Sinn Féin MPs voting at Westminster is an idea whose time has come. The arguments that Sinn Féin leaders still advance against doing so do not stand up against rational examination or precedent.