Marc Miller Named New Culture Minister in Carney Cabinet Shuffle

Marc Miller Sworn In as New Culture Minister in Carney’s Cabinet Shuffle

Prime Minister Mark Carney appointed Montreal MP Marc Miller as Canada’s new minister of Canadian identity and culture on Monday, filling a key vacancy created by the sudden resignation of former minister Steven Guilbeault. The move comes amid heightened federal-provincial tensions following Ottawa’s new energy pact with Alberta and the announcement of a new oil pipeline to the British Columbia coast.

Guilbeault Resigns After Energy Pact Announcement

Guilbeault, who served prominently in the Trudeau and Carney governments, stepped down late last week but will remain a Liberal MP. His resignation followed fierce internal debate over the federal government’s decision to support the Alberta-Ottawa energy framework, a policy shift seen by critics as a departure from the party’s long-standing climate-first messaging.

During his time in cabinet, Guilbeault carried significant files including the Online Streaming Act and the Online News Act—two hallmark pieces of digital-platform legislation now facing growing pressure from the United States to be repealed.

Miller Returns to Cabinet With Expanded Responsibilities

Though Miller previously served in cabinet under former prime minister Justin Trudeau from 2019 to 2025, he had not been part of Carney’s initial team. His return now places him at the centre of a portfolio with renewed political stakes. In addition to culture and identity, Miller will also oversee official languages, a file with significant influence in Quebec and minority-language communities.

The appointment comes as the government continues to redefine the ministry’s mandate. With Carney creating a stand-alone artificial intelligence ministry, responsibilities surrounding digital regulation, copyright, and online harms are now split across multiple departments—raising questions about inter-ministerial cooperation.

Other Changes in the Cabinet Shuffle

• Joël Lightbound becomes Carney’s new Quebec lieutenant, replacing Guilbeault.
• Julie Dabrusin, Minister of Environment and Climate Change, will now oversee the nature portfolio.
• Ministers declined to take questions following the swearing-in ceremony at Rideau Hall.

A Government Facing Cross-Border Pressures

Miller inherits the role amid intensifying U.S. demands that Canada revise or abandon the two major online-platform laws introduced under Trudeau. The Carney government has yet to signal whether it will defend, amend, or dismantle the legislation—placing the new minister at the forefront of one of Ottawa’s most politically charged debates.