The three branches within our government include the judicial, legislative, and executive branch. The judicial branch consists of the Supreme Court. This branch interprets the law and determines what is constitutional and unconstitutional. The legislative branch consists of Congress, which is reponsible for making federal laws. The executive branch consists of the presidency. This branch is responsible for enforcing the law.
In our government, these branches are part of a system of checks and balances. This means that every branch has a specific set of powers and can be overruled by another branch if they are violating a law or the constitutional. For example, the Supreme Court (judicial branch) can overrule a law made by the legislative branch (aka Congress) if the law violates the rights of citizens.