Here is “Barking Goldfish,” from Season 2 of the Strict Scrutiny podcast. Around 18:30, the crew starts talking about Chehalis argument. The transcript is available here (the Chehalis bit starts on page 7).
Marcia Coyle’s National Law Journal article, “Resolving Stalemate, Supreme Court Picked Lawyer for Key Pandemic Argument” — which is referenced in the podcast — is here if you have a subscription.
As always, Chehalis background materials are here.