Hint: The Constitution requires the testimony of two witnesses to the same overt act or a confession in open court to convict someone of this crime.

The only crime specifically defined in the U.S. Constitution is treason. According to Article III, Section 3, treason is limited to acts of levying war against the United States or adhering to their enemies, providing them with aid and comfort.

This definition reflects the framers' intent to prevent the misuse of treason charges as a tool for political persecution, as was common in British history. The Constitution requires the testimony of two witnesses to the same overt act or a confession in open court to convict someone of treason, ensuring a high standard of proof. This careful delineation underscores the seriousness with which the framers regarded the crime and the importance of safeguarding individual liberties against arbitrary accusations.