How does a justice of the peace differ from a U.S. Supreme Court justice?

A justice of the peace and a U.S. Supreme Court justice differ significantly in their jurisdiction, appointment, and tenure:

• Jurisdiction: A justice of the peace is a local magistrate who handles minor civil matters and petty criminal cases, such as misdemeanors or traffic offenses. In contrast, the Supreme Court of the United States is the highest judicial body in the nation, primarily exercising appellate jurisdiction over cases of significant legal or constitutional importance.12
• Appointment and Tenure: Justices of the peace in the United States are typically elected or appointed at the state or local level. Supreme Court justices are appointed by the president with the advice and consent of the U.S. Senate and serve for life, unless removed through impeachment and conviction.132
• Functions: Beyond presiding over minor court cases, a justice of the peace may perform marriages, issue arrest warrants, and hold inquests. A Supreme Court justice participates in deciding landmark cases, setting legal precedents, and overseeing the federal judicial system.132