Constitutionalism is the idea that a government should operate according to a set of established laws, often outlined in a constitution. This framework ensures that power is limited and that the rights of individuals are protected. By having a constitution, citizens can hold their leaders accountable and ensure that laws apply equally to everyone, preventing the abuse of power. In a constitutional system, the roles and responsibilities of government branches, such as the executive, legislative, and judicial, are clearly defined. This separation of powers helps maintain a balance, allowing for checks and balances that safeguard democracy and promote fairness in governance.