The Constitution requires it.
No
He promises to protect the US Constitution when he is sworn into office.
President Lincoln meant that the primary goal of the Union is to protect and preserve its constitutional framework. He believed that the Constitution was the foundation of the nation and it was the duty of the government to uphold and defend it. Lincoln's emphasis on the "declared purpose" suggests that maintaining the Union was a fundamental principle that should not be compromised.
To preserve their nation (the Republic of South Vietnam).
Both. The Union was fighting to end slavery, and preserve the Union. The South was looking to become an indepent nation, a right guarenteed by the Constitution.
When the Senate learns that the House is organized, the President comes in for the State of the Union Address. This is a significant political event, and is commanded by the Constitution to occur. The President gives a report of the nation as he sees it, and lays out different goals and plans that he has to assist the nation.
All the Constitution says is that he shall do so from "time to time". And it need not be a speech.
chief executive
chief executive
Washington was the first president elected under the new Constitution whose ratification created the new nation of the United States of America in1787.
by spiting on it