Answer:
The system of checks and balances was put in place to limit the power of one branch. Congress limits the power of the president by means of controlling the money, making the laws, and having the power to disapprove government officials appointed by the president such as judges etc. They can also over ride a veto like they did to Obama when congress wanted to sue Iraq Obama vetoed and congress over ran the veto.Congress also has the power to approve treaties and declare war
Explanation:If Congress doesn't approve of the president's they can take away the funding for the project like they did to jfk in Vietnam of course this didn't work because jfk sent them over their anyways and congress needed to supply funding so it didn't seem like we were abondoning our troops that were fighting in Vietnam