Why is a system of checks and balances necessary for the success of Constitutional government?

A system of checks and balances is essential for the success of a constitutional government because it prevents any single branch of government—executive, legislative, or judicial—from gaining excessive power. This framework ensures that each branch can monitor and limit the actions of the others, fostering accountability and protecting individual rights. By distributing power, it encourages collaboration and deliberation, which are vital for effective governance and the prevention of tyranny. Ultimately, checks and balances uphold the rule of law and enhance the legitimacy of the government.