How did the legal opinion of john marshall shape the us government? a. it established a regulatory system for political parties to prevent them from gaining too much power. b. it necessitated presidential approval of all legislation prior to implementation. c. it provided for a more effective system of checks and balances within the federal government. d. it limited the power of the president by requiring congressional approval for a declaration of war.

The correct option is C

John Marshall was a lawyer, judge, politician, diplomat, legislator, statesman, jurist and American military, Marshall was a native of the Commonwealth of Virginia and leader of the federalist party. He was also Secretary of State with President John Adams, performing this work until his appointment on February 4, 1801 in the Supreme Court of the United States. Its work and its figure was very outstanding, to occupy the position President of the Supreme Court of the United States until its death, in which a great transformation took place in the legal and judicial system, and transcendental judicial processes as they were: Marbury v. Madison in 1803, which happens to be the most famous sentence in history, according to which the function of judges is to say what is law and in which it is said -textually- that "a law contrary to the Constitution is null , and that the courts, in addition to the other powers, are subject to the Constitution ", in addition, the McCulloch v. cases are also found. Maryland in 1819 and Cohens v. Virginia in 1821. Being the Presiding Judge with more time in office (34 years), and the fourth with more time depending on the court.