The Borderline
An overnight bargain over 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 · Feb 17, 2026
ST
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.
236 stories in the Washington archive
Recent work
A last-minute bargain over the embassy channel
Feb 15, 2026
Dollar-for-dollar tariffs: the view from the West Wing
Feb 14, 2026
Nova Scotia’s navy town confronts the USMCA review
Feb 13, 2026
Bill 1596 and the problem of the embassy channel
Feb 12, 2026
The intelligence panel turns to the USMCA review as Boise watches
Feb 11, 2026
Foggy Bottom stays late on the auto rules of origin
Feb 10, 2026
The file
The Borderline
The softwood file: the view from Langley
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 · Feb 9, 2026
The Borderline
Bill 1548 and the problem of 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 · Feb 8, 2026
The Borderline
Homeland Security turns to cross-border data rules as Spokane watches
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 · Feb 7, 2026
The Borderline
Manitoba’s manufacturing shops confront 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 · Feb 6, 2026
The Borderline
An unfinished bargain over the USMCA review
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 · Feb 5, 2026
The Borderline
Capitol Hill stays late on the embassy channel
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 · Feb 4, 2026
The Borderline
The predictable week Washington frays 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 · Feb 3, 2026
The Borderline
An overnight bargain over 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 · Feb 2, 2026
The Borderline
In Allentown, steel and aluminum duties rewrites the map
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 · Feb 1, 2026
The Borderline
What 50 per cent in Toledo says about the USMCA review
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 · Jan 31, 2026
The Borderline
The embassy channel: the view from Capitol Hill
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 · Jan 29, 2026
The Borderline
K Street stays late on 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 · Jan 28, 2026
The Borderline
The border supplemental hiding inside the USMCA review
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 · Jan 27, 2026
The Borderline
The West Wing stays late on a dairy flare-up
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 · Jan 26, 2026
The Borderline
In Toledo, the auto rules of origin frays the map
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 · Jan 25, 2026
The Borderline
Canada’s stake in steel and aluminum duties just got larger
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 · Jan 24, 2026
The Borderline
The West Wing stays late on 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 · Jan 22, 2026
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