Because otherwise the president or the congress would have all the power. It would be like North Korea where the president has all the power. He could do whatever he wants.
Checks and balances between Congress and the president are intended to limit the potential powers of both.
The president
The US Constitution divides the foreign policy powers between the President and Congress so both share in foreign policy.
IT divided into 3 branches---legislative(congress) to make the bill,executive(president) to carry out the law,and the judicial..to explain the law..... Answer....
The US President is not a legislator. He plays no role in Congress. This is one of the big differences between the US Constitution and a parliamentary system in which the Prime Minister is the leader of his party on the legislature.
Refer to: What are the main causes of conflict between the President and Congress?
The requirements for the State of the Union address are found in Article II, Section 3 of the U.S. Constitution. This section states that the President shall "from time to time give to the Congress Information of the State of the Union," indicating the obligation to inform Congress about the nation's status and legislative agenda. While the Constitution does not specify the frequency or format, it establishes the importance of this communication between the President and Congress.
The balance of power between the three branches of government is even, since the founding fathers wrote checks and balances into the Constitution. The congress makes the laws, which can be vetoed by the president. The congress can over rule the president, and the judicial system can rule the laws unconstitutional.
the president can declare war with the consent of congress..................
Members of Congress often have ideas very different from the president about what constitutes desirable public policy.
Not exactly. The President is not allowed to declare way; the Constitution reserves this power to the Congress. But on December 8, 1941, President Roosevelt addressed a special session of Congress and requested that Congress declare that a state of war existed between the United States and the Japanese Empire.
1. New government includes President and two-house legislature. 2. Power is divided between nation and state governments.