<span>The Truman doctrine </span><span> </span><span> </span><span>The Truman Doctrine was an American
foreign policy whose stated purpose was to counter Soviet geopolitical
expansion during the Cold War. It was first announced to Congress by President Harry S. <span>Truman.</span></span>
The "elastic," or implied powers, clause gives Congress the authority to pass laws it deems "necessary and proper" to carry out its enumerated functions.