No. 17-834October Term 2019Decided Mar 3, 2020
Kansas v. Garcia
This case asked whether federal immigration law shuts down state identity-theft prosecutions tied to work-authorization paperwork.
Case status
- Current stage
- Decided
- Latest event
- Decision released Mar 3, 2020
- What it's about
Kansas prosecuted several unauthorized workers for identity theft and related state crimes after they used other people’s Social Security numbers on job and tax forms. The case is about whether federal immigration law blocks states from bringing those prosecutions because the conduct overlaps with the federal employment-verification system.
Question presented
1. Whether IRCA expressly preempts the States from using any information entered on or appended to a federal Form I-9, including common information such as name, date of birth, and social security number, in a prosecution of any person (citizen or alien) when that same, commonly used information also appears in non-IRCA documents, such as state tax forms, leases, and credit applications. 2. Whether the Immigration Reform and Control Act impliedly preempts Kansas's prosecution of Respondents?
- Case path
Supreme Court of Kansas / Decision released Mar 3, 2020
- Area
Decided Supreme Court case
Briefing
What it's about
The Supreme Court decided a fight over whether the federal Immigration Reform and Control Act blocks Kansas from prosecuting workers for identity theft and related state crimes when the same personal information also appeared on state tax and other nonfederal forms. The case grew out of Kansas prosecutions involving the use of other people's Social Security numbers on job and tax paperwork.
Vote
The case was argued on Oct. 16, 2019, and decided on March 3, 2020, but the prompt does not provide the vote count or opinion lineup.
Impact
The Court's answer affects how much room states have to bring their own criminal cases when conduct overlaps with the federal employment-verification system. For example, it matters when a state prosecutor wants to charge identity theft based on a Social Security number used on tax and job documents.
What's next
The Supreme Court has finished this case. Kansas and lower courts must apply the Court's March 3, 2020 decision in this case and similar disputes.
What was the core dispute in Kansas v. Garcia?
The case asked whether federal immigration law blocks Kansas from prosecuting identity theft and related crimes tied to job and tax forms. The overlap with federal Form I-9 information was central.
Who is most affected by this case in the real world?
State prosecutors, workers accused of using another person's Social Security number, and employers are all affected. The decision shapes when state criminal charges can accompany immigration-related workplace conduct.
What happens next after the Supreme Court's decision?
This Supreme Court docket is over. Kansas courts and other lower courts will use the decision when similar preemption disputes arise.
Decision
What the Court decided
This case asked whether federal immigration law shuts down state identity-theft prosecutions tied to work-authorization paperwork.
Impact
The Court's answer affects how much room states have to bring their own criminal cases when conduct overlaps with the federal employment-verification system. For example, it matters when a state prosecutor wants to charge identity theft based on a Social Security number used on tax and job documents.
Not official Court text.
Opinion documents
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 materials10
Supreme Court docket 17-834
docket | Jul 3, 2026
Primary case document
Supreme Court document | Jul 3, 2026
CourtListener docket record
docket | Jul 3, 2026
Questions Presented
brief | May 2, 2026
opinion
opinion | Mar 3, 2020
Petition
brief | Dec 7, 2017
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026
SupremeCourt.gov
official | Jul 2, 2026