Final answer:
The Constitutional provision allowing Congress to 'make all laws necessary and proper' is referred to as the Elastic Clause, which facilitates the expansion of Congressional powers.
Step-by-step explanation:
The Constitution's provision that Congress has the right to "make all laws necessary and proper for carrying into execution" its powers is often referred to as the Elastic Clause. This clause, found in Article I, Section 8 of the Constitution, enables Congress to create the legal means to fulfill its constitutional responsibilities and extends beyond the powers explicitly listed, allowing for the federal government's involvement in various policy areas such as healthcare, taxation, and interstate commerce regulation. The Elastic Clause is also known as the necessary and proper clause and plays a crucial role in the expansion of Congressional powers through its interpretation over time.