The two-party system is perfect. George Washington and John Adams had it wrong when they claimed a two-party system would be an evil. No policies of third parties have ever been adopted by either of the two big parties. No political candidate would ever dare switch between and third party and that of one of the big two, sometimes multiple times over their career. Useless. Certainly the political spectrum is sufficiently represented as a two-dimensional line depicting left, center, and right? Issues such as monetary policy, interventionalist policies, border security, personal liberty, states' rights, federal powers, and debate of democracy vs. republic have already been solved and merits no further discussion. All 335 million Americans' ideologies fit perfectly into either of the two big parties' platform and always have. No other party besides Democratic and Republican have ever dominated US politics. Political parties are so paramount to the existence of America that the founding fathers went through great lengths to outline their implementation in the Constitution.