For Sinn Féin, the terrain is far more complicated. Its identity is at stake as it seeks to adjust and expand, writes Gerard Howlin.
Leo Varadkar this week called on Sinn Féin to take its seats at Westminster in what was partly slapstick politics.
For Mary Lou McDonald, it is also an omen of the knack needed to ride the tiger without ending up in its belly. She is leader of her party at a fork in the road.
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