Jon Stewart said this quote

As heirs to a legacy more than two centuries old, it is understandable why present-day Americans would take their own democracy for granted. A president freely chosen from a wide-open field of two men every four years; a Congress with a 99% incumbency rate; a Supreme Court comprised of nine politically appointed judges whose only oversight is the icy scythe of Death -- all these reveal a system fully capable of maintaining itself. But our perfect democracy, which neither needs nor particularly wants voters, is a rarity. It is important to remember there still exist other forms of government in the world today, and that dozens of foreign countries still long for a democracy such as ours to be imposed on them.