[25][26][27] Below are the 44 MPs who chose not to run in the 2019 federal election: The Parliament of Canada's Ethics Commissioner, Mario Dion, found that Trudeau improperly influenced then Minister of Justice and Attorney General Jody Wilson-Raybould to intervene in an ongoing criminal case against Quebec-based construction company SNC-Lavalin.

[184] The Trudeau government has maintained that there was no undue pressure or law broken, that offering SNC-Lavalin a deferred prosecution agreement (DPA) could save jobs, and that the controversy resulted from a misunderstanding and an "erosion of trust".

[196] On September 18, Trudeau attracted controversy for a photograph published in Time magazine, in which he wore brownface makeup to a party at West Point Grey Academy, where he was a teacher, in 2001.

[215][216] On September 23, Del Arnold, Liberal candidate for Calgary Shepard, apologized to Conservative rival Tom Kmiec after spreading misleading information about his place of residence.

[232][233] This worried CPC insiders and prompted the Progressive Conservative Party of Ontario to call an extended recess of the provincial legislature to reduce negative news coverage, in order to help the federal Tories.

On April 25, Harzadan Khattra, the candidate for Dufferin—Caledon, was disqualified after a fellow contestant sent the party verifiable information about "membership buying, improper voting, and other concerns".

[253] On July 10, Cyma Musarat, Conservative candidate for Pickering—Uxbridge, faced an allegation from fellow party members that she won her nomination by using improper voting procedures.

[268] A day after his rivals pushed him to clarify his position during the TVA debate, Scheer mentioned that he was pro-life but reiterated what he said in the past concerning anti-abortion bills.

[277] On September 14, Justina McCaffrey, Conservative candidate for Kanata—Carleton, attracted attention for making negative remarks in a video about Justin Trudeau and Francophones, and her relationship with Faith Goldy.

[278] She departed a campaign event when confronted by reporters, but later released a statement apologizing for her comments and later stated that her relationship with Goldy ended a longtime ago.

[280][281][282] Conservative campaign manager Hamish Marshall's past role as a director of Rebel Media was also questioned, since Goldy was an on-screen personality before being fired.

[285] On September 28, The Globe and Mail revealed that they found no record of Scheer receiving the licence required by law to work as an insurance agent or broker in Saskatchewan despite him claiming so in the past.

[325] CTV News covered a Singh event in Verner, Ontario and spoke to a number of voters there, including NDP supporters, who said that they would not vote for a leader wearing a turban.

[338][339] The following day, Singh backed off those comments and urged Canadians to vote NDP in order to receive services like universal pharmacare and dental care.

[344] In October, the Bloc Québécois called on Quebeckers to vote for candidates "who resemble you" (" des gens qui nous ressemblent ") in the election, prompting NDP Leader Jagmeet Singh to denounce the message as unacceptable and divisive.

[357] On August 16, Luc Saint-Hilaire, Green candidate for Lévis—Lotbinière, was forced to resign because of a Facebook post demanding Boufeldja Benabdallah, co-founder of the Centre Culturel Islamique de Québec, to denounce a man who allegedly lit his ex-wife on fire.

[358] On September 12, Erik Schomann, Green candidate for Simcoe North, resigned over a 2007 Facebook post which appeared to suggest he wanted to mail pieces of a pig carcass to Muslims in support of the protesters during the Muhammed comic controversy.

[368] On September 12, Dale Dewar, Green candidate for Regina—Qu'Appelle, apologized for making past negative comments on social media about Israel, Zionism and Israelis.

[372][373][374] When she was on Tout le monde en parle, May clarified that the original photo featured a compostable cup; the picture was modified to add the GPC's logo.

[395] On July 30, Cody Payant, People's candidate for Carlton Trail—Eagle Creek, attracted attention for a social media post defending Lindsay Shepherd.

[401] On October 10, Sybil Hogg, the candidate for Sackville-Preston-Chezzetcook, came under fire for a series of anti-Islam tweets calling Islam "pure evil" and for the religion to be banned in Canada.

[411] After confusion about the warning, Elections Canada released a public statement to clarify that the prohibition applied only to advertising, not speech in general the following day.

[416] On October 3, the CBC revealed that the Manning Centre is a driving financial force behind a network of anti-Liberal Facebook pages pumping out political messaging and memes during the federal election campaign.

[22][422] Furthermore, due to this controversy, Jean-Pierre Kingsley, the former chief electoral officer, said that the next federal government must close the gap in the law that allowed the Manning Centre to raise money and then pass it along to third-party groups without disclosing the source of those donations.

[491][492] The Buffalo Chronicle, an American fake news website, promoted a false rumour about a sex scandal that supposedly resulted in Justin Trudeau's departure from West Point Grey Academy.

In Ontario, the Liberals won 79 of the province's 121 seats, with a particularly strong showing in the Golden Horseshoe, where the party was not only able to fend off expected challenges from the Conservatives and the NDP but gain the Conservative-held ridings of Kitchener—Conestoga and Milton.

The RDD internet survey largely replicated the larger online study, although it contained fewer questions and has a smaller sample (CPS n=4,021; PES n=2,889).

[555][556] Dominic O'Sullivan, Associate Professor of Political Science at Charles Sturt University, argued that Canada should follow in New Zealand's footsteps with their electoral reform.

[570] In late 2022, Global News reported on a suspected attempt by the government of China to infiltrate the Parliament of Canada by funding a network of candidates to run in the 2019 federal election.

[571][572][573][574][575] Prime Minister Justin Trudeau stated on November 20, 2022, regarding alleged interference in the election that "I do not have any information, nor have I been briefed on any federal candidates receiving any money from China".