Deltapoll questioned a representative sample of 2,075 adults online throughout Great Britain between 10 and 12 September 2021. This was boosted by 6,104 further online interviews conducted between 14 September and 6 October, targeted to reach larger numbers of particular groups. Altogether Deltapoll’s two samples, totalling 8,179, included: • 3,245 people (of all social classes) who voted Labour in 2019 • 2,504 former Labour supporters • 4,518 C2DE voters, including people who had never voted Labour The data were weighted to the profile of British adults (for the national sample) and the demographic profiles of the major sub-groups in the booster samples.