The Office of Economic Opportunity was the agency responsible for administering most of the War on Poverty programs created during Johnson's Administration, including VISTA, Job Corps, Head Start, Legal Services and the Community Action Program.
The separation of powers and checks and balances grants each branch of government with their own limits of power. This prevents tyranny because the other branches will check the one branch's limits on the power and stop it before it gets out of hand.
The primary function of Congress is to pass rules that all Americans must obey, a function called lawmaking.
