1. The system of checks and balances is used to keep the government from getting too powerful in one branch
2. Executive Branch
3. Congress can override that veto, which is by the president with a vote of two-thirds of both houses.
4. Executive Branch: Headed by the president
5. (carry out : thực hiện)
The president carries out federal laws and recommends new ones, directs national defense and foreign policy, and performs ceremonial duties.