He wrote a biography about George Washington

Marshall was selected as a representative to the Virginia convention in 1788 that made the decision on whether or not to ratify the United States Constitution, which was proposed by the Philadelphia Convention the year before. James Madison, Edmund Randolph, and Marshall led the ratification drive. In particular, he vigorously defended Article III, which creates the Federal judiciary. At the ratification convention, his main competitor was Patrick Henry, the founder of the Anti-Federalist movement. The Constitution was approved by the convention by a final vote of 89-79. Marshall sided with the emerging Federalist Party, which supported a strong national government and economic interests, instead of Jefferson's Republican Party, which supported states' rights, the yeoman farmer, and the French Revolution.

George Washington was the first American president, and he presided over the country from 1789 to 1797. After being appointed to the Supreme Court, Marshall began writing George Washington's biography. He was requested to do this by his close friend, Associate Justice Bushrod Washington, who had inherited his uncle's papers. Marshall's The Life of George Washington, the first biography of a U.S. president to be printed, had five volumes and just under a thousand pages. On July 6, 1835, Marshall passed away at the age of 79. His legacy is the fact that he led the Supreme Court through six presidential administrations, and was widely considered the most influential jurist in U.S. history. His administration laid the foundations for the Supreme Court’s role as the ultimate interpreter of the Constitution and paved the way for the expansion of the federal government in the 19th and 20th centuries.