This educational guide is based on the linked primary sources. It is not a Court publication, is not affiliated with the Court, and is not legal advice.
In brief
Overview
Background and question before the Court
What each side argues
Air and Liquid Systems Corp. – Position
Source-limited. The record does not yet support a complete account.
Roberta G. DeVries – Position
Source-limited. The record does not yet support a complete account.
What happened at oral argument
Chief Justice Roberts asked, “Why is that?”
Justice Sotomayor asked, “how is your product not the cause of the injury?”
According to Justice Sotomayor, justice Sotomayor said, “I’m sorry, why —”
What the Court decided
Why it matters
Terms to know
No glossary terms are available for this guide.
Primary sources
Read the source materials on the official site or open the immutable repository copy used for this guide.
- 7cae4e72e2aba1d31867-r1-a58a015dc60f62ae.pdforal argument transcript
Guide generated September 26, 2026. Automated validation accepted this version.