TORONTO (AP) — Canadian Prime Minister Justin Trudeau has appointed a former justice minister to examine whether the dual role of justice minister and attorney general should be separated amid a scandal that threatens his Liberal party's re-election.

Trudeau announced Monday that Anne McLellan, also a Liberal, would undertake the study.

Former Justice Minister and Attorney General Jody Wilson-Raybould says Trudeau and others improperly pressured her in a case involving a major Canadian engineering company accused of corruption

Trudeau reportedly leaned on the attorney general to instruct prosecutors to reach the equivalent of plea deal and avoid a criminal prosecution of SNC-Lavalin because he felt that jobs were at stake.

It led to resignations of two Cabinet ministers and Trudeau's top adviser, as well as the departure of Canada's top civil servant.