There are many different forms of government in the world and of those, there are several forms of democracy including the unitary system (where the national government has all the power), the confederate system (where the states have all the power), and federalism.
Of these, it is my opinion that federalism supports democratic government better than the others. With federalism, there is a balance between the power of the state and national government. Contrary to the unitary system, federalism allows states to vote on laws which can vary from state to state depending on the wills of the people. Residents are able to make more of a difference by bringing local problems to the state rather than