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Read the record. Follow the disagreement.

The law changes. See how.

Explore controversial Canadian and US cases through the decisions that shaped them: competing arguments, conflicting courts, dissents and reversals.

Public historical research, separate from your private cases. Each collection ends at the dates shown. Summaries describe the judgments at that time; they are not a current-law citator or an eligibility assessment. Editorial notes are in English.

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5 collections

Canada · 1988–1993

Who controls the abortion decision?

Three Canadian judgments separate bodily autonomy, a partner’s attempted veto, and the limits of provincial power.

When does a restriction on abortion become an unconstitutional criminal barrier, and whose asserted rights can support an injunction?

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United States · 2014–2015

One Constitution, conflicting circuit courts

The Fourth and Sixth Circuits reached opposite conclusions about same-sex marriage before Obergefell resolved the conflict.

How could federal appellate courts applying the same amendment reach incompatible answers?

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Canada · 2012–2015

When a binding precedent can be revisited

Carter moved from a trial victory to an appellate reversal and then a unanimous Supreme Court ruling, against the background of Rodriguez.

When may a trial court revisit a constitutional question already answered by a higher court?

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Sources reviewed 2026-11-08. Holdings and separate opinions are summarized in our own words.