USCIS marks this question with an asterisk: applicants who are 65 or older and have been permanent residents for 20 or more years may study just the marked questions.
What is the supreme law of the land?
Accepted answers
Accepted answer
- (U.S.) Constitution
Explanation
The U.S. Constitution is the highest law; all other laws must agree with it.
The explanation is our own study note, not official wording.
Source: USCIS, 2025 version (USCIS M-1778, 09/25)Verified Jul 23, 2026Official PDF
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