The Elastic Clause is in Article I of the US Constitution, and it states that any powers necessary to complete the powers listed above (the expressed powers of congress), but not necessarily mentioned there, are nonetheless granted to the Congress.
For example: An express power is that Congress can maintain an army. A implied power (powers granted by the elastic clause) would be to recruit, train, and draft citizens into that army. It could also establish military bases to which civilian access was restricted.
The elastic clause has been used throughout US history to add powers to the federal government.
It allows the federal government to expand its powers.
Popular Sovereignty describes the right of the people to run their country.
Judicial
Ratification of the U.S. Constitution
What is the "constitutional orphan" of the Tenth Amendment?
The Preamble
Government
Laws are made by the legislative branch of government. The executive branch executes the laws, and the judicial branch interprets the laws.
Shay's
is core to the notion of "life, liberty and the pursuit of happiness" in the Declaration of Independence.
The Legislative branch is responsible for the draft and creation of laws.