The Necessary and Proper clause was intended to allow Congress to decide whether, when and how to legislate for "carrying into execution" the powers of another branch, and at the same time intended to respect and reinforce the principle of separation of powers.
This is how Donald Trump won in 2016 actually tho he lost the Popularity vote. This also proves that this isnt a democracy (also look it up Donald trump and George bush did this). ANYWAYS BYE :D