Conservative Leader Andrew Scheer said todayLiberal MPs should push for Prime Minister Justin Trudeau's resignation as he faces his third ethics investigation this time for his handling of the multi-million dollar WE Charity student grants contract.

Scheer said thatif Liberal backbenchers don't call for Trudeau's departure now, they'll becomplicit in his alleged "corruption."

"If they allow him to continue, if they don't demand that he resign, then they are telling Canadians that they are comfortable with his corruption," Scheer told reporters during a press conference on Parliament Hill.

"Each and every one of them has a choice to make," he said of Liberal MPs.

Scheer said the Liberal backbench should be demanding thatTrudeau explain why he approved such a large contract (a "contribution agreement," according to the public service)with a charity that had been paying his family members.

"Either the Liberals were aware of these issues and still approved the decision, or they were incompetent," he said.

"It's either corruption or incompetence. Which is it?"

Trudeau has apologized for not recusing himself from cabinet talks about the WE Charity deal after it was revealed his mother and brother received some $300,000 in speaking fees from the group.

Finance Minister Bill Morneau alsohas saidhe made a mistake by participating in those talks when his daughter works for the charity in its travel department.

Parliament returned today to debate new pandemicrelief legislation. Trudeau was not in attendance.

According to his official itinerary, Trudeau took a"personal" day.

"He chose the date in which the House of Commons would reconvene and he's not showing up for work today," Scheer said.

The opposition leader called for aspecialemergency debate on the WE scandal but Speaker Anthony Rota said the topic didn't meet the bar for such a request.

Under the Commons rules, an emergency debate is only allowable if the Speaker finds the matter relates to a "genuine emergency."

Deputy Prime Minister Chrystia Freelandfielded questions from the oppositionon Trudeau's behalf in question period.

"Asdeputy prime minister,part of my job is to be accountable to this chamber when the prime minister is not here," she said.

Pressed on the WE contract, Freeland said it was the non-partisan public service that recommended WE as program administratorbecause the charity has the nationwide reach to pair students with volunteeropportunities. Sheconceded the program'srollouthas been problematic.

Watch:Scheer questions Freeland about WE Charity and failed student grants program:

Rachel Wernick, a senior bureaucratwith Employment and Social Development Canada, said last week she recommended WE for the job after one of its co-founders, Craig Kielburger, presented her with a grants plan the day the PM announced a substantial aid package for out-of-work students.

"Obviously, the way this unfolded was regrettable, and that is why the charity is no longer administering the project," Freeland said.

Asked if Trudeau would appear before the finance committee to testify about his role in this affair, Freeland said "we are cooperating as we ought to."

NDP Leader Jagmeet Singh said the $912-million summer grants initiative wasn't really a program to help students but rather a lifelinefor a charity facing a dip in donations because of the pandemic.

"There were lots of ways to help students. This was not it,"Singh said.

"What was it? Itwas a billion-dollar bailout of close friends of the Liberal Party and of the prime minister."

Conservative MP Michael Barrett saidthe program which could have been worth as much as $43.5 million in administrative fees for the WE Charity was about Trudeau "rewarding his friends, punishing his enemies and always letting Canadians down."

Kevin Lamoureux, the Liberal deputy House leader, said the opposition was engaging in "character assassination." Freeland said the program was always about protectingthe current cohort of college and university students from becoming a "lost generation."

Watch: Singh says summer student grants program was a 'billion-dollar bailout'

Scheer's comments about "corruption" came after Liberal MPs filibustered the House of Commons ethics committee meeting last Friday with 30-minute long monologues on various topics their personal resumes, democracy, ancient Greece, French political theory and the virtues of the University of Sherbrooke, among others that pushed the committee meeting's duration well past its scheduled end time.

Liberal MP Greg Fergus then moved to adjourn the committee before there could be a vote on an ethics probe.

Scheer said he hopestheMPs behind the filibuster are punished by their constituents at the ballot box during the next federal election. He said their behaviour was "shameful."

"We're going to appeal to Canadians to put pressure on Liberal MPs to do the right thing," Scheer said.

During a members' statement in the Commons, Conservative MP Cheryl Gallant called Trudeau the "most corrupt prime minister in the history of Canada."

"Three strikes and you're out. That's what my constituents are saying," Gallant said, referring topast reports from the ethics commissioner that found Trudeau had contravened the ethics code onceby vacationing on the Aga Khan's private island and onceagain during the SNC-Lavalin scandal.

The Commonsis todaydebatinga new piece of government legislation, C-20. If adopted, the billwill make changes to the federal wage subsidy program and send one-time payments to disabled Canadians.

The legislation has the support of the Bloc Qubcois but Scheer said he's concerned that the Liberals'tweaks to the wage subsidy have made the program too "complex."

Read more:

Scheer says Liberal MPs signalling they're OK with 'corruption' if they don't demand Trudeau's resignation - CBC.ca