A Green Party membership coalition has hit back at senior party figures, urging the Greens to stand aside in the Makerfield by-election. Their letter‘s message is unambiguous: the grassroots will not be managed into irrelevance. Green grassroots hitting back at Burnham The Canary can reveal a letter signed by Green Party members, circulating in response to a joint statement from high-profile party figures including former co-leader Jonathan Bartley and ex-councillor Rupert Read. It calls on Zack Polanski to rule out stepping aside for Labour’s Andy Burnham in Makerfield. Over 120 members and counting have so far signed the open letter, launched…