Answer :

GiaS
The constitution strikes a balance of authority among the three branches of government through checks and balance.

Executive Branch:
- President signs or vetoes legislation
- President appoints Justices
- President Commander in Chief

Judicial Branch:
- Justices serve for life, free from control of other balances
- Supreme Court rules on constitutionality of law or executive action

Legislative Branch
- Congress declares war
- Congress passes law
- Senate confirms Justices/ presidential appointees

The effectiveness of these checks and balances depends on how each branch exercises their "checks" on the other branches.

The Constitution has the purpose of constituting the separation of powers, defines and creates the constituted powers (legislative, executive and judicial), which before the constitution were united. In addition, it defines its respective controls and balances, because it delimits the powers and institutions of the political organization.