Predictions of a Reform win were wide of the mark. But Labour’s crushing byelection defeat offers important lessons too Predictions of a Reform win were wide of the mark. But Labour’s crushing byelection defeat offers important lessons too S everal historic things have just happened at once in Wales. Plaid Cymru won in the Caerphilly byelection for our Senedd, with almost 50% of the vote. Reform lost. Labour collapsed. Each of those things means something significant for Wales, but it also