As per Article I of the Constitution of the United States of America all legislative powers are vested in the Congress of the United States. The American Congress is the bicameral legislative body. The Congress consists of Senate (Upper House) and House of Representatives (Lower House). Its meeting place is at the United States Capitol, Washington, D.C.
There are two elected Senators from each State making the total number of Senators to be 100 in the Senate. The House of Representatives consists of 435 elected representatives that are divided among the 50 states in proportion to their total population and are also known as Representatives.
The Congress has the authority to enact legislation i.e., make laws for the people of U.S.A. Congress also has the right or power to confirm or reject many Presidential appointments. In-order to pass a legislation it has to be sent to the President for his signature after both the Houses pass the same bill by majority vote.
The first step in the legislative process i.e., law making process is to introduce the bill to the Congress and then there are various stages that the bill has to go through in-order to become law. Congress can make new laws or change existing laws whenever required for the welfare of the people. It also conducts investigations to oversee the executive branch i.e., the branch that implements or executes the law so that the law actually is in force among the people.