Discuss in depth the expansion of power obtained by Congress, the presidency and the judiciary paying close attention to the original outlines within the Constitution: Articles I-III. Remember that each branch of government has seen its powers expand beyond what was originally written; what is the genesis of these additional powers?

The Constitution of the United States of America is a brief document outlining the boundaries of the American federal government. Discuss in depth the expansion of power obtained by Congress, the presidency and the judiciary paying close attention to the original outlines within the Constitution: Articles I-III. Remember that each branch of government has seen its powers expand beyond what was originally written; what is the genesis of these additional powers? Each branch is different in this regard so be specific: examples should be included to bolster your essay. And most importantly, is this expansion of power (outside of the framework of the formal amendment process) just? Why?