The Welsh Election Study, 2019 (WES) was an online pre- and post- 2019 General Election survey of voting age adults in Wales, with a sample of approximately 2,000, conducted by YouGov.The aims of the project were to: Make possible a detailed and focused account of voting behaviour in Wales – a key battlegrounds in the 2019 General Election. Understand how Welsh voters interact with UK-level politics after two decades of devolution Add to the substantial time-series of questions collected in Wales as part of the Welsh Election Study.Further information may be found on the Welsh Election Study website. Elections, Wales, devolution, Welsh election, Welsh nationalism, Labour, Conservative, Plaid Cymru, Brexit Party, Liberal Democrat, social class, national identity, Welsh independence, political attitudes, electoral voting, political interest, political value.