Ever since Ireland gained independence in 1922, every Irish Government has been led by either Fianna Fáil or Fine Gael (or one of its antecedents). The two parties emerged from a split over the Anglo-Irish Treaty that paved the way to independence. The side that became Fine Gael accepted the Treaty, and the side that became Fianna Fáil, led by Éamon de Valera, rejected it. The pro-Treaty side, under Michael Collins, won the subsequent civil war but Fianna Fáil soon emerged as the strongest and most popular party in the new Irish state. [...]
But as time has gone on, and the Civil War recedes ever more into the distance, the historical differences between Fianna Fáil and Fine Gael seem less and less important and increasingly they are seen as two sides of the same coin. [...]
Irish politics is also unusual in that immigration has barely raised its head as an issue, despite the fact that Ireland actually has a higher proportion of non-nationals living here than almost any other EU country, including Britain. Both the media and the mainstream parties absolutely refuse to permit a debate on the matter, but most of the immigrants to date are from other EU countries and fit in well for the most part. [...]
But every scenario is bound to strengthen Sinn Féin further. A second confidence-and-supply deal makes Sinn Féin the de facto opposition party, and if there is an outright coalition between the two parties, Sinn Féin becomes the official opposition. One way or another, the party of Gerry Adams and Martin McGuinness will benefit and the next time an election is called it will be running far more candidates and could potentially become the biggest party in the state for the first time since independence almost a century ago. It’s also possible that, if either main parties dumps their leader after the election, they choose a successor willing to cross that line and enter a coalition government with Sinn Fein.