The national chief of the Assembly of First Nations is urging chiefs to vote in favour of a landmark child welfare deal, saying she doesn’t think a better agreement would be possible under a different federal government. Some chiefs, meanwhile, are campaigning to vote down the $47.8-billion child welfare reform agreement at an assembly in Calgary this week. The deal was struck in July between Canada, the Chiefs of Ontario, Nishnawbe Aski Nation and the Assembly of First Nations after a nearly two-decade legal fight over Canada’s underfunding of on-reserve child welfare services. The Canadian Human Rights Tribunal said that was discriminatory and tasked Canada with coming to an agreement with First Nations to reform the system, along with compensating children who were torn from their families and put in…