No. 20-366October Term 2020Decided Dec 18, 2020
Trump v. New York
At stake is whether the President can try to exclude undocumented immigrants from the apportionment count before House seats are assigned.
Case status
- Current stage
- Decided
- Latest event
- Decision released Dec 18, 2020
- What it's about
This case concerned President Trump’s 2020 memorandum directing the Commerce Department to provide information that could let the President leave undocumented immigrants out of the population count used to divide seats in the House of Representatives among the states. States and local governments challenged the policy, arguing that it would reduce their representation and federal funding.
Question presented
1. Whether the relief entered satisfies the requirements of Article III of the Constitution. 2. Whether the Memorandum is a permissible exercise of the President’s discretion under the provisions of law governing congressional apportionment.
- Case path
United States District Court for the Southern District of New York / Decision released Dec 18, 2020
- Area
Decided Supreme Court case
Briefing
What it's about
Trump v. New York asks whether President Trump's 2020 memo could let the government leave undocumented immigrants out of the population count used to divide House seats among the states. States and local governments sued, saying the plan was unlawful and would hurt their representation and funding.
Vote
The case is pending, and no oral argument is scheduled in the record provided. The challengers say the memo could cut representation and funding, while the government says the President has discretion under the laws on apportionment (dividing House seats among states).
Impact
How people are counted affects political power and money. If some residents are excluded, states and cities could lose a House seat or federal funds tied to population.
What's next
The next sign of movement would be oral argument or another scheduling order from the Court. No decision window is available yet.
What is the main fight in Trump v. New York?
The case asks whether the President may direct officials to prepare data that could exclude undocumented immigrants from the apportionment count. The challengers say that move violates the Constitution and federal law.
Why could this case matter to states and cities?
House seats and some federal dollars depend on population totals. If people are left out, affected states and local governments could lose political influence and funding.
What should readers watch for next in Trump v. New York?
Watch for the Supreme Court to schedule oral argument or issue another order. The record provided does not give a decision timeline yet.
Decision
What the Court decided
At stake is whether the President can try to exclude undocumented immigrants from the apportionment count before House seats are assigned.
Impact
How people are counted affects political power and money. If some residents are excluded, states and cities could lose a House seat or federal funds tied to population.
Not official Court text.
Opinion documents
Timing
Decided December 18, 2020
The Court released its decision on December 18, 2020 without hearing oral argument.
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jul 2, 2026
- Method
- Methodology
Primary materials9
Supreme Court docket 20-366
docket | Jul 25, 2026
Primary case document
Supreme Court document | Jul 25, 2026
CourtListener docket record
docket | Jul 25, 2026
Questions Presented
brief | May 24, 2026
Opinion
opinion | Dec 18, 2020
Jurisdictional Statement
brief | Sep 22, 2020
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026