Partisan Extremism Quotes
Most political analysts agree that all of these were factors that produced the hyperpolarization of the time. There were others such as the Republican Southern Strategy which triggered a shift of Democratic conservatives to the Republican party. This made the Republicans more conservative and the Democrats more liberal. Then those strong ideological parties drove many of their moderates out, and the Tea Party ran even more conservative candidates knocking out less conservatives in the primaries. Another factor, the relatively even split of voters nationally causing most candidates to appeal to their bases which became more extreme. However, especially in the House of Representatives, the redistricting created so few competitive districts that there was no need for candidates with safe seats to even be concerned with moderate and undecided voters.