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'New generation, not New Labour." If there's one slogan to take away from Ed Miliband's first whirlwind 24 hours, that is it. He has broken with the past. That's clear. But he has not yet filled out and clarified his vision of the now, and the next. There is now a battle to shape the narrative about Ed's victory. What does it mean for Labour, the unions, and the coalition? It is an urgent matter, because first impressions can stick.