CALGARY, ALBERTA-CP-The national chief of the Assembly of First Nations is urging chiefs to vote in favour of a landmark child welfare deal with Ottawa, saying she doesn’t think a better agreement would be possible under a different federal government. Some chiefs are campaigning to vote down the $47.8-billion child welfare reform agreement at an assembly in Calgary this week. Several stepped up to the floor Wednesday evening expressing concerns they have with the agreement, including that they felt the Assembly of First Nations was working in lockstep with Canada, rather than to advance First Nations priorities, as is their mandate. 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…