How polarisation in Washington affects a growing feeling of partisanship | Harry J Enten :
The average Democrat was a little north of -0.4 after the 1992 elections and right at -0.4 in the last congress. This percentage has been fairly constant for the past 20 years even when the Democrats won more swing and red districts when they won back the majority from 2007 to 2011.
There has, however, been an increase in partisanship in the house, and it truly is "asymmetrical".
The Republican House caucus has been becoming more conservative every year since 1977, whether or not House Republicans are winning or losing elections. Republicans have climbed from 0.4 on the DW nominate scales after the 1992 elections to near 0.7 in the last congress. That type of charge towards polarization is historically unusual over data that stretches back 130 years.
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