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Blocking critics on social media

Biden v. Knight First Amendment Institute at Columbia Uni v.

Updated Sep 19, 2026

In brief

The Supreme Court wiped out the lower-court ruling and sent the case back to be thrown out as moot, leaving the First Amendment question unanswered in this case.

Where it stands
Decided

Decided · April 5, 2021

What it’s about
This case concerned whether President Trump violated the First Amendment by blocking critics from his personal Twitter account after using that account to communicate official government business.
Who it affects
The Second Circuit's ruling no longer stands, but the Supreme Court did not decide whether blocking critics violated the First Amendment. The Court treated the dispute as moot after the change in administration and Twitter permanently removed Trump's account.

Summary: written with AI from the case record.

Illustration for Biden v. Knight First Amendment Institute at Columbia Uni v.
Conceptual illustration · AI-generated

What it's about

The Supreme Court granted review but then vacated the lower court’s decision and sent the case back with instructions to dismiss it as moot after the change in administration and the loss of Trump’s Twitter account.

The case reflects a broader question about whether officials' personal social-media accounts can become channels for government communication.

Question presented

Whether the First Amendment deprives a government official of his right to control his personal Twitter account by blocking third-party accounts if he uses that personal account in part to announce official actions and policies.

What the Court decided

Holding

The judgment is vacated, and the case is remanded to the United States Court of Appeals for the Second Circuit with instructions to dismiss the case as moot.

Result
Vacated

What's next

The Second Circuit's next step is to throw the case out (dismiss it) as moot (no longer a live dispute), following the Supreme Court's instructions. This case will not produce a Supreme Court decision on the First Amendment question.

Documents

2

Docket activity

6
  • New analysis added

    Sep 19, 2026 · Court records

  • AI analysis generated: Case Briefing

    Sep 19, 2026 · Generated

  • AI analysis generated: Decision Record

    Sep 19, 2026 · Generated

  • Case data updated: status, opinion_date

    Jul 25, 2026 · Court records

  • Opinion added: Opinion

    Apr 5, 2021 · Court records

Show 1 more
  • Brief added: Petition

    Aug 20, 2020 · Court records

More questions

5
What happened in Biden v. Knight First Amendment Institute?
The Court wiped out the Second Circuit's ruling and sent the case back. It instructed that court to throw the case out (dismiss it) as moot (no longer a live dispute).
What First Amendment question did the case raise?
It asked whether President Trump could block critics from a personal Twitter account used partly to announce official actions and policies.
Did the Supreme Court decide whether Trump could block critics?
No. The Court treated the dispute as moot and did not decide whether the blocking violated the First Amendment.
What made the dispute moot?
The change in presidential administration and Trump's loss of his Twitter account removed the live dispute.
What happens next in the case?
The Second Circuit must throw the case out (dismiss it) as moot (no longer a live dispute), following the Supreme Court's instructions.

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Sep 19, 2026Methodology

Court records and filings

Reporting and analysis