Everyone has an answer to this seemingly simple question. But what is the right answer? Think about this: when we first became a nation, our first national government was organized under a plan called The Articles of Confederation. Under the A of C, the national government was VERY limited. So much so that it could not effectively govern. During a meeting in Philadelphia which was called to revise the A of C, it was decided among the delegates that the A of C were way too weak, and a new system to govern this nation had to be created. As a result, the Constitution of the United States was created.
Let's put this in terms easy to comprehend. Consider the size and power of the government under the A of C - we'll represent that plan with a Smart Car.
Now consider the size and power of the national government today. We'll represent the government today with its enormous reach, power and intrusiveness into our lives with a monster truck.
From the Smart Car to the monster truck. Is this really what our founding fathers envisioned for our country's government? I think not. Keeping the car analogy, it would be represented by this car, the Ford Fiesta - basic transportation with enough power and space to get most jobs done.