At the Green Party’s by-election HQ, a former hairdresser’s overflowing with boxed leaflets and donated snacks, we shared weird stories about Reform UK from Denton and Gorton’s doorsteps. My partner in door-knocking had three Reformers come to her door; two stayed completely silent while an over-excited man launched immediately into a rehearsed speech about how he used to be a Labour supporter until he saw social housing being given to groups of “military-aged” Asian men. Others told me of how their supporters would yell the party’s name at them through letterboxes (“Reform!”) as if it were a curse. It is...