At a press conference in Winnipeg on Tuesday evening, Trudeau defended his government's handling of the SNC-Lavalin matter.
"How the law treats individuals or corporations in our society is not, and should never be, incumbent upon the political pressure they can exert upon politicians", he said.
She also says that she has retained former Supreme Court justice Thomas Cromwell to advise her on this front.
"With a heavy heart I am writing to tender my resignation as the Minister of Veterans Affairs and Associate Minister of National Defence", Wilson-Raybould wrote in her letter to the prime minister, a copy of which she tweeted online. Citing unnamed sources, the Globe and Mail has reported that officials in the prime minister's office transferred that pressure a year ago to then-attorney general Wilson-Raybould.
Wilson-Raybould has refused to comment on the allegation since it surfaced last Thursday, citing solicitor-client privilege.
At the time, many Canadians questioned whether the move was a demotion for Wilson-Raybould, a claim that both she and Justin Trudeau openly denied, highlighting the importance of veterans affairs in Canada.
Her exit came less than 24 hours after Trudeau said he had "full confidence" in her and suggested she would have resigned from cabinet on principle if she had felt anyone had tried to improperly pressure her. She was demoted from the post of justice minister last month.
Conservative Leader Albert Scheer has led the charge to haul Trudeau's aides and top members of his party in front of an emergency meeting of the justice committee for what he calls "unprecedented" attempts at influencing a criminal proceeding.
"She's a fighter", he said.
Trudeau's office said the prime minister would stick to previously announced plans to speak to reporters later on Tuesday in Winnipeg. "Clearly, there is something more than he has been forthcoming with".More news: Kyler Murray chooses the National Football League over baseball
"We welcome the ethics commissioner's investigation", the prime minister said following an event in Vancouver, Wilson-Raybould's hometown.
The Trudeau government passed a law past year which allows for remediation agreements in cases of corporate corruption, wherein a company pays reparations but does not wind up with a criminal conviction that would bar it from bidding on government contracts, potentially throwing thousands of employees out of work.
Trudeau said that he's consulting with Canada's new Attorney General David Lametti on whether, and to what degree, he can waive attorney-client privilege and reveal details of his conversations with Wilson-Raybould on the SNC-Lavalin case. The committee is scheduled to consider the motion on Wednesday. Instead he said it was for the Liberal-dominated committee to decide.
Liberals, who hold the majority on the committee, appear to be open to conducting an investigation.
The scandal is now being looked at by Federal Ethics Commissioner, Mario Dion.
"Justin Trudeau must be transparent and we will continue to push his government to make sure Canadians receive the answers they deserve".
"For folks who are puzzled by Ms Raybould's, Wilson-Raybould's, decision to step down, they can add me to the list", he said.
Garrison Settee, grand chief of the Manitoba Keewatinowi Okimakanak Inc., a group representing 30 First Nations in northern Manitoba, echoed that sentiment.
Wilson-Raybould's father told Kapelos that this government is not making progress on reconciliation.