[6] Regional councillor Elaine Moore, from the same wards, announced her retirement in late March.

Rumours that were circulating of Patrick Brown running for Regional chair were neither confirmed or denied, when asked by Metroland in May 2018.

Brown was accused of sexual misconduct in January, which he denies, forcing his resignation as Progressive Conservative Party of Ontario leader.

Charles Sousa and Harinder Takhar, also former MPPs, agreed to not run, in an effort to not split the vote.

[15] While this prompted Brown to pull his Chair nomination, to run for Mayor of Brampton, Delaney continued his campaign, noting that the law had yet to pass.

In October 2017, incumbent Brampton Mayor Linda Jeffrey announced her intent to run for a second term.

[20] Real estate lawyer Wesley Jackson was noted in a February 2018 Peel Daily News article as "hoping to become Brampton's next mayor.

According to the Guardian, the majority of the event saw "Brown and Sprovieri focusing much of their attention on Jeffrey's record and vice versa.

"[24] The first Mayoral debate to allow physical attendance will be held September 20, 2018, at Sheridan College, Davis Campus, through The Pointer, an online news outlet for Brampton.

[28] Jeffrey held a fundraiser at the Albany Club of Toronto, a venue associated with the Conservative Party.

[31] Forum Research, released October 19, 2018[33] Incumbent Linda Jeffrey and candidate Patrick Brown both polled at 40%, John Sprovieri polled at 7%, Wesley Jackson at 5%, Bal Gosal at 4%, Vinod Kumar Mahesan at 4%, and Mansoor Ameersulthan at 1%.

[39] Incumbent Martin Medeiros lived in Mississauga in 2014, but began a move to Brampton, allowing him to run in the election.

Resident Peter Bailey filed a legal proceeding to try and remove Medeiros from office, but was unsuccessful.

The action was in advance of a vote on the then-Hurontario Main Light Rail Transit project, which Medeiros wanted and Bailey did not.

He also campaigned on standing up to an incumbent who hasn't “stood up for our fair share” and “rolled out the red carpet” for certain health care announcements.

[47] Candidate Nishi Sidhu also cited a "previous engagement", and Omar Mansoury accepted the invitation but did not attend.

In 2022, Singh won the NDP riding nomination for Brampton North, supplanting incumbent MPP Kevin Yarde.

[61] Johnston withdrew his mayoral candidacy on July 25 and registered to run for Ward 9 city councillor instead.

[68] Former Conservative Party of Canada federal MP Brad Butt, currently the Mississauga Board of Trade Director of Government Relations, is a notable candidate.

[69] Butt also considered running in Ward 6, but changed his intentions when Ron Starr re-entered that race, after the cancellation of the Regional Chair election.

Topics discussed including speeding reduction, the Lakeview zoning by-law, and cannabis stores.

[72] Three residents' associations held another debate, featuring Burke, Butt, Dasko, Hart, Roque and Setaram.

Clarke had waited until the last day of the nomination period to file her papers, and was soliciting signatures from City staff.

[78] Fourteen candidates entered the race to succeed Starr for the open seat with Joe Horneck being the first to register.

July 23 one week before the filing deadline Starr decided to drop out of contention for Regional Chair with that race had 10 candidates including former PC leader Patrick Brown (now Brampton Mayor) and Starr re-registered for his incumbent ward, suggesting that he could do more in his existing position then as regional chair.

[80] Mississauga News columnist John Stewart summarized the race by saying most of the city was a status quo election however "Horneck's loss is more politically impressive than most wins elsewhere.

"[81] Tahir Ali, Syed Mohammad Jaffery, Fazli Manan, and Avtar Minhas have withdrawn.

Incumbent councillor Nando Iannicca retired from this riding, and re-emerged later in the nomination period as a candidate for Chair of the Region of Peel.

Dipika Damerla, former MPP for Mississauga East—Cooksville and Minister of Seniors Affairs, announced her candidacy for the ward in mid-July.

"[85] Incumbent Sue McFadden described the incident as "scary", while Al-Ezzi says that the resident tried to goad him on every time he intended to leave.