Greater Manchester Mayor Andy Burnham is set to appear at a conference aimed at the “progressive majority,” alongside former Green Party leader Caroline Lucas. Multiple reports describe the event as a gathering that brings together figures associated with progressive politics, and they note that Burnham’s decision to share the platform with Lucas has drawn criticism. The reports frame the controversy as “backlash” directed at Burnham over his participation with the former Green Party leader, though they do not specify the sources of the complaints in detail. The coverage emphasizes the planned appearance itself and the political context around who is joining the mayor at the conference. It remains focused on the event and the resulting reaction rather than on any policy decisions or new statements by Burnham or Lucas. The overall picture across the reporting is that the mayor’s participation at the conference is the central development, with opponents raising concerns about the optics and political alignment implied by sharing a stage with a prominent former Green Party figure.