Public support is a critical component of any court’s institutional legitimacy. Understanding the roots and durability of such support is therefore crucial. This article uses survey data to explore public attitudes towards Canadian courts from 2008 to 2019. This time period is especially relevant given the comparatively tumultuous relationship between the Supreme Court and the Conservative government of Prime Minister Stephen Harper (2006–2015). Notably, partisanship now appears to be a defining characteristic of court support in Canada, with Conservative Party supporters being less likely to support the courts. While institutional trust is also found to be a strong predictor of court support, this suggests public attitudes towards Canadian courts may no longer be as well shielded from the effects of changing political circumstances as they once were.