G4

1.
Executive privilege: The president is given the power to veto a bill that is passed in congress. Even if both chambers of congress agree on passing the bill, and want it to become a law, they do not have the power to make it a law. The president is able to oppose a bill by not signing it into law.
Executive orders: The president is able to create a rule or regulation which acts as a law. An executive order has the power to affect decisions in congress.
Commander in chief: The president is given the power to deploy troops for 60 days without a declaration of war. Therefore, even if congress does not declare war on another nation, the president can still take action.

2. Legislative oversight: Congress evaluates executive agencies to make sure there are no problems, therefore reducing problems within the executive branch.
Senate advice and consent power: The president appoints supreme justices, and the senate approves the appointments. therefore, the president must consider an appointment that will be approved by congress, rather than an appointment that only he or she might consider.
Budgetary power: The president must consult with congress on the budget, and has to get congress' approval on budget plans.