In a surprising turn of events, former justice minister David Lametti has stepped down from his position as Prime Minister Mark Carney's principal secretary, just under three months after stepping into the high-profile role. This unexpected exit has raised eyebrows and speculation across political circles.

Sources claim that Lametti found himself at a disadvantage in a power struggle with Tom Pitfield, who also holds the title of principal secretary. Pitfield is a seasoned political strategist and former chief digital strategist for the Liberal Party, known for steering major digital operations for years, including under previous Prime Minister Justin Trudeau.

As Lametti departs, whispers suggest he is poised for a prestigious diplomatic role, potentially as Canada's ambassador to the United Nations. The current ambassador, Bob Rae, has held the position since 2020, raising questions about how this transition will unfold.

The news of Lametti’s departure was initially reported by the CBC, and while he did not respond to inquiries, the PMO has remained tight-lipped on personnel changes.

Adding another layer to the story, it’s been reported that former cabinet ministers Bill Blair and Jonathan Wilkinson are also expected to receive ambassadorial postings, heading to Great Britain and Germany, respectively.

The role of principal secretary, once the apex of the PMO hierarchy, has evolved to be overshadowed by the chief of staff position. This pivotal role involves managing political files and coordinating key government decisions.

Carney initially brought in Lametti as part of a power trio aimed at reshaping the Canadian economy amidst challenges posed by the Trump administration. Joining him were influential figures including Marc-Andre Blanchard, a prominent lawyer, and Michael Sabia, the chief executive of Hydro-Québec.

However, Pitfield's connections have sparked controversy, particularly regarding his previous work with Philip Morris International, a leading tobacco company. This relationship stands in stark contrast to the Liberal Party's longstanding commitment to reduce smoking rates and promote public health.

Despite these concerns, Prime Minister Carney brushed off the potential conflict of interest, emphasizing the legality of cigarette sales in Canada and dismissing criticism from health advocacy groups.