He was chief justice of the Supreme Court for almost 35 years. That's what best describes John Marshall's service to the united states
John Marshall, a legendary figure in American legal history, was the chief justice of the United States Supreme Court for more than three decades.
During that period, he contributed to the growth of the Federal court system's authority and stature.
The first of Marshall's famous cases, Marbury v. Madison (1803), established the court's authority to declare unconstitutional federal statutes and other actions.
Marshall is most well-known for two crucial contributions to the contemporary American government.
In order for the court to claim equal standing with Congress and the Executive in a balanced government of distinct powers, he first established the authority and reputation of that department.
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