Abstract
This study explored the determinants of the massive vote shift that characterised the UK’s 2019 elections. To do so, this study firstly investigated opinions expressed by pro-Labour social groups about the hot issues of the political campaign; secondly, it conducted a cross-constituency analysis on the 2019 vote. The present findings reveal that the issues emphasised by the Conservative manifesto tallied with the opinions of traditional left-wing social groups. The cross-constituency statistical analysis confirmed this point and found a significant association between Labour’s losses and the territorial distribution of the abovementioned social groups. These findings suggest that the crucial aspect of the vote shift was the Conservatives’ appeal to the sociocultural conservativism of part of Labour’s traditional voters.