what is the basis of the necessary and proper clause
Necessary and Proper Clause The Necessary and Proper Clause, also known as the elastic clause,[1] is a clause in Article I, Section 8 of the United States Constitution that is as follows:
Ineligibility Clause The Ineligibility Clause (sometimes also called the Emoluments Clause,[1] or the Incompatibility Clause,[2] or the Sinecure Clause[3]), is a provision in Article 1, Section 6, Clause 2 of the United States Constitution[4] that makes each incumbent member of Congress ineligible to hold an office established by the federal government during their tenure in Congress; it also bars officials in the federal government's executive and judicial branches from simultaneously serving in either the U.S. House or Senate. The purpose of the clause is twofold: first, to protect the separation of powers philosophy (upon which the federal frame of government is built); and second, to prevent Congress from conspiring to create offices or increase federal officials' salaries with the expectation that members of Congress would later be appointed to these posts.[5][6]