Canada–U.S. Correspondent

Sophie Tremblay

Sophie Tremblay is the bureau’s Canada–U.S. correspondent, covering tariffs, USMCA, autos, dairy and the embassy circuit.

310 stories in the Washington archive

The Ambassador Bridge between Windsor and Detroit

The Borderline

The sanctions package aimed at Tehran hiding inside cross-border data rules

The relationship that used to be muscle memory is now a file with a clock on it — cross-border data rules, seen from both sides of the border.

Sophie Tremblay · Jun 2, 2026

Recent work

Canada–U.S.

Canada’s stake in the embassy channel just got larger

Jun 1, 2026

Canada–U.S.

The border supplemental hiding inside steel and aluminum duties

May 31, 2026

Canada–U.S.

Canada’s stake in a dairy flare-up just got larger

May 29, 2026

Canada–U.S.

The USMCA review: the view from Langley

May 28, 2026

Canada–U.S.

An overnight bargain over the auto rules of origin

May 27, 2026

Canada–U.S.

Savannah cannot look away from steel and aluminum duties

May 26, 2026

The file

The Borderline

What 51 per cent in Green Bay says about the auto rules of origin

The relationship that used to be muscle memory is now a file with a clock on it — the auto rules of origin, seen from both sides of the border.

Sophie Tremblay · May 25, 2026

The Federal Reserve Board building in Washington

The Borderline

Bill 2796 and the problem of the auto rules of origin

The relationship that used to be muscle memory is now a file with a clock on it — the auto rules of origin, seen from both sides of the border.

Sophie Tremblay · May 24, 2026

The Borderline

The an energy emergency resolution hiding inside the auto rules of origin

The relationship that used to be muscle memory is now a file with a clock on it — the auto rules of origin, seen from both sides of the border.

Sophie Tremblay · May 23, 2026

The Borderline

Savannah cannot look away from the softwood file

The relationship that used to be muscle memory is now a file with a clock on it — the softwood file, seen from both sides of the border.

Sophie Tremblay · May 22, 2026

The Borderline

The embassy channel: the view from Langley

The relationship that used to be muscle memory is now a file with a clock on it — the embassy channel, seen from both sides of the border.

Sophie Tremblay · May 21, 2026

The Borderline

Steel and aluminum duties: the view from Foggy Bottom

The relationship that used to be muscle memory is now a file with a clock on it — steel and aluminum duties, seen from both sides of the border.

Sophie Tremblay · May 20, 2026

The Borderline

Ways and Means turns to steel and aluminum duties as Anchorage watches

The relationship that used to be muscle memory is now a file with a clock on it — steel and aluminum duties, seen from both sides of the border.

Sophie Tremblay · May 19, 2026

The west front of the United States Capitol

The Borderline

A dairy flare-up: the view from Langley

The relationship that used to be muscle memory is now a file with a clock on it — a dairy flare-up, seen from both sides of the border.

Sophie Tremblay · May 18, 2026

The Borderline

In Little Rock, the USMCA review rewrites the map

The relationship that used to be muscle memory is now a file with a clock on it — the USMCA review, seen from both sides of the border.

Sophie Tremblay · May 17, 2026

The Borderline

Cross-border data rules: the view from Foggy Bottom

The relationship that used to be muscle memory is now a file with a clock on it — cross-border data rules, seen from both sides of the border.

Sophie Tremblay · May 16, 2026

The Borderline

Tucson cannot look away from dollar-for-dollar tariffs

The relationship that used to be muscle memory is now a file with a clock on it — dollar-for-dollar tariffs, seen from both sides of the border.

Sophie Tremblay · May 15, 2026

The Harry S. Truman Building, U.S. State Department

The Borderline

Canada’s stake in the embassy channel just got larger

The relationship that used to be muscle memory is now a file with a clock on it — the embassy channel, seen from both sides of the border.

Sophie Tremblay · May 14, 2026

The Borderline

Raleigh cannot look away from the auto rules of origin

The relationship that used to be muscle memory is now a file with a clock on it — the auto rules of origin, seen from both sides of the border.

Sophie Tremblay · May 12, 2026

The Borderline

The border supplemental hiding inside the auto rules of origin

The relationship that used to be muscle memory is now a file with a clock on it — the auto rules of origin, seen from both sides of the border.

Sophie Tremblay · May 11, 2026

The Borderline

Banking turns to the auto rules of origin as Portland, Maine watches

The relationship that used to be muscle memory is now a file with a clock on it — the auto rules of origin, seen from both sides of the border.

Sophie Tremblay · May 10, 2026

The Peace Arch at the Canada–U.S. border

The Borderline

Armed Services turns to a dairy flare-up as Green Bay watches

The relationship that used to be muscle memory is now a file with a clock on it — a dairy flare-up, seen from both sides of the border.

Sophie Tremblay · May 9, 2026

United Nations headquarters beside the East River

The Borderline

The expensive week Washington reopens steel and aluminum duties

The relationship that used to be muscle memory is now a file with a clock on it — steel and aluminum duties, seen from both sides of the border.

Sophie Tremblay · May 8, 2026

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