Larry Brock has officially resigned from the House of Commons, ending his time as the Conservative member for Brantford—Brant South—Six Nations.
Brock had announced in August that he would leave federal politics on September 18, 2026, and return to the Crown Attorney’s office in Brantford, Ont. His resignation now leaves the Ontario riding without a sitting member in Parliament. (Brock’s August announcement)
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Why Larry Brock is leaving Parliament
Brock said his decision was connected to an opportunity to return to courtroom work. Before entering federal politics, he worked as a Crown prosecutor, and he presented the move as a return to criminal justice rather than a departure from public service.
In his earlier announcement, Brock said his focus on community safety remained unchanged and that working again in the Brantford Crown Attorney’s office would allow him to continue that work directly.
He had represented the former Brantford—Brant riding after first winning election in September 2021. Following the 2025 federal election, he was elected in the newly configured Brantford—Brant South—Six Nations constituency. (His election history)
What happens to the riding now
Brock’s resignation creates a vacancy that must be addressed through the federal electoral process. Elections Canada says a by-election is normally held when an MP resigns, dies or otherwise leaves a seat vacant between general elections.
The Speaker of the House must notify the Chief Electoral Officer after a seat becomes vacant. The federal government then sets the timing for the writ and polling day, subject to the statutory deadlines governing by-elections. (Elections Canada’s electoral process information)
For a federal by-election, the writ must be issued within the legally prescribed window after Elections Canada receives the Speaker’s warrant. The campaign period must also meet the minimum and maximum lengths set out in the Canada Elections Act.
No date for a Brantford—Brant South—Six Nations by-election had been announced as of September 18, 2026. The timing could depend on the handling of other vacant seats and the government’s decision on when to issue the election writ.
Another change for the Conservative caucus
Brock’s departure removes another Conservative voice from the House of Commons as the party prepares for the return of Parliament. He had been active on justice and public-safety issues and served on the House Standing Committee on Justice and Human Rights.
His exit also means Conservative Leader Pierre Poilievre’s parliamentary team will need to operate with one fewer member until voters choose a replacement. The vacant seat will not be filled through party appointment; constituents will select a new MP in a federal by-election.
The House of Commons calendar shows that the chamber was not scheduled to sit on Friday, September 18, 2026. Parliament was set to resume regular sittings on September 21. (The House of Commons calendar)
What voters in Brantford—Brant South—Six Nations should know
Residents remain represented by the riding’s parliamentary institutions, but the constituency has no voting MP until the vacancy is filled. Constituency services and federal departments may continue to provide assistance, although residents should confirm the availability of local office services during the transition.
When a by-election is called, eligible voters will need to live in the electoral district during the required voting period and prove their identity and address. Elections Canada will publish the official timetable, candidate information and voting details once the writ is issued. (official voting information)
Brock’s resignation is therefore both a personal career decision and a formal parliamentary change: his federal seat is vacant, a by-election process is expected, and the riding will soon face a new contest for representation in Ottawa.
Frequently Asked Questions
Why did Larry Brock resign from the House of Commons?
Brock announced that he was leaving federal politics to return to courtroom work with the Crown Attorney’s office in Brantford, Ontario.
Which riding did Larry Brock represent?
He represented Brantford—Brant South—Six Nations in Ontario.
Will there be a by-election after Brock’s resignation?
A federal by-election is expected because the riding’s House of Commons seat is now vacant, subject to the statutory electoral process.
When will the Brantford—Brant South—Six Nations by-election be held?
No polling date had been announced as of September 18, 2026. Elections Canada will publish the timetable once the writ is issued.
When did Larry Brock first become an MP?
Brock was first elected to the House of Commons on September 20, 2021.
Fact-Checked: Key facts were checked against House of Commons records, Elections Canada information and current public reporting on Brock’s resignation.
Disclaimer: The by-election date and administrative details may change after the Speaker formally reports the vacancy and the election writ is issued.