government house believes governance united states should be split between two
The parties may be broad churches with many mechanisms in place to form the ‘best policy’ but that can still lead to flaws under a single-party government. It is easy for one wing to dominate a party, as has been seen recently with the dominance of the Tea Party within the Republican Party.  Primaries are a symptom of this, with the views of grass roots being expressed in results that do not conform to the views of a majority of voters.  This can lead to parties standing and governing on a platform that is unrepresentative of the aims of many Americans. Under Single-Party Government, there is little scope for moderating highly ideological government, thus underlining the need for divided government.