The Borderline
The USMCA review: the view from K Street
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 5, 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
Banking turns to dollar-for-dollar tariffs as Raleigh watches
May 4, 2026
The partisan week Washington rewrites the USMCA review
May 3, 2026
Banking turns to dollar-for-dollar tariffs as Little Rock watches
May 2, 2026
The auto rules of origin: the view from Langley
May 1, 2026
In Portland, Maine, the USMCA review tests the map
Apr 30, 2026
Manchester cannot look away from a dairy flare-up
Apr 29, 2026
The file
The Borderline
Portland, Maine 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 · Apr 28, 2026
The Borderline
What 45 per cent in Chattanooga says about 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 · Apr 27, 2026
The Borderline
What 38 per cent in Portland, Maine says about 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 · Apr 25, 2026
The Borderline
British Columbia’s ports 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 · Apr 24, 2026
The Borderline
Quebec’s aluminum towns confront 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 · Apr 23, 2026
The Borderline
Raleigh 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 · Apr 22, 2026
The Borderline
Ways and Means turns to the softwood file as Savannah watches
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 · Apr 21, 2026
The Borderline
Canada’s stake in cross-border data rules just got larger
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 · Apr 20, 2026
The Borderline
An unfinished 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 · Apr 19, 2026
The Borderline
Armed Services turns to the softwood file as Portland, Maine watches
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 · Apr 18, 2026
The Borderline
Portland, Maine 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 · Apr 17, 2026
The Borderline
An ugly bargain over 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 · Apr 16, 2026
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 · Apr 15, 2026
The Borderline
Foggy Bottom stays late on 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 · Apr 14, 2026
The Borderline
Banking turns to the USMCA review as Wilmington watches
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 · Apr 13, 2026
The Borderline
The partisan week Washington miscalculates 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 · Apr 12, 2026
The Borderline
The stopgap spending bill hiding inside 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 · Apr 11, 2026
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