Of these presidents, I would argue that Theodore Roosevelt had the most lasting impact. This is because it was during his time that the first major steps towards Progressiveness were taken. TR was the president who first moved away from having the government constantly back employers against unions.
The necessary and proper clause is aimed at protecting the principle of the rule of law by allowing Congress to legislate various issues necessary for the maintenance of law and order in society. This allows for the exercise of powers allowed in the constitution
