The Borderline
Cross-border data rules: the view from Capitol Hill
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 · Jul 22, 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
Buffalo cannot look away from the softwood file
Jul 20, 2026
What 50 per cent in Buffalo says about dollar-for-dollar tariffs
Jul 19, 2026
An overnight bargain over cross-border data rules
Jul 18, 2026
Ways and Means turns to the USMCA review as Omaha watches
Jul 17, 2026
A legal bargain over the auto rules of origin
Jul 16, 2026
The legal week Washington isolates dollar-for-dollar tariffs
Jul 15, 2026
The file
The Borderline
Homeland Security turns to cross-border data rules as Toledo 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 · Jul 14, 2026
The Borderline
Grand Rapids cannot look away from 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 · Jul 13, 2026
The Borderline
A legal bargain over 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 · Jul 12, 2026
The Borderline
Bill 3360 and the problem of 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 · Jul 11, 2026
The Borderline
Bill 3348 and the problem of 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 · Jul 10, 2026
The Borderline
In Omaha, dollar-for-dollar tariffs reopens the map
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 · Jul 9, 2026
The Borderline
Ontario’s auto belt confronts 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 · Jul 8, 2026
The Borderline
In Wilmington, cross-border data rules tests the map
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 · Jul 7, 2026
The Borderline
Tucson cannot look away from 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 · Jul 6, 2026
The Borderline
Saskatchewan’s grain elevators confront 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 · Jul 5, 2026
The Borderline
In Manchester, dollar-for-dollar tariffs tests the map
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 · Jul 3, 2026
The Borderline
A transactional 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 · Jul 2, 2026
The Borderline
Steel and aluminum duties: the view from Capitol Hill
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 · Jul 1, 2026
The Borderline
What 41 per cent in Chattanooga 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 · Jun 30, 2026
The Borderline
Alberta’s oil patch confronts 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 · Jun 29, 2026
The Borderline
An expensive bargain over 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 · Jun 28, 2026
The Borderline
Savannah cannot look away from 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 · Jun 27, 2026
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