Supreme Court rejects Trump administrationās bid to set aside 20,000 California ballots
The entire ruling was a single sentence with no explanation and no noted dissents, which tells you how the court views this particular fight at this particular moment. A swift denial like that doesn't settle the underlying dispute over whether those 20,000 names are actually noncitizens, but it does mean California can keep counting those ballots for now.
Election integrity is a legitimate concern, and the administration isn't wrong that states have an interest in making sure only citizens vote. But the administration's list has been questioned by California and immigration groups over how it was compiled, and the burden of proof matters when you're talking about removing ballots from the count. The court clearly wasn't persuaded that the emergency was urgent enough to intervene.
I'd want to know where the list came from and how reliable the matching is, because that's the crux of it. If the names are solid, this is a missed opportunity to clean up the rolls. If they're not, the court just avoided injecting itself into a mess based on shaky data. Either way, the silence from the court leaves the door open for more litigation, and we'll likely see this again after the election.