An important new study of Reform has been carried out under the supervision of electoral studies guru Sir John Curtice: https://www.theguardian.com/politics/2026/jun/02/reform-uk-support-could-plateau-relies-on-conservative-views-study-finds
After listening to Sir John on Radio 5 this morning, my take home message is slightly different from that of The Guardian. Yes, as we long suspected, there is a glass ceiling to Reform support, but it may be at a level which could make them the largest party in the Commons which would enable them to conclude a confidence and supply agreement with the Tory rump and the Democratic Unionists. I have seen 'Conform' at work in Warwickshire.
A key point made by Sir John was that at a time when voters have become increasingly disengaged from parties, a high proportion of Reform voters say they are 'very strong' supporters. In other words, there is hard core of support.