Leo Varadkar, who resigned yesterday, has certainly earned his place in the history of Anglo-Irish relations as one of the most consequential taoiseachs of all time. His role in Anglo-Irish relations was defined by Brexit, and Ireland’s remarkable role in shaping its outcome. The marked contrast with John Bruton – a previous Fine Gael taoiseach of the 1990s, who died last month – could not be greater. Bruton