I think this is one of the biggest threats our congressional turnover rate is lower than the Soviet's was. I live in Pennsylvania and the Republicans have stolen our congressional representation. In 2002 Democrats got 48% in congressional elections, Republicans only got 41%, but had 63% of congressional representation.
Iowa is a state I think is doing it right. They make their districts with a nonpartisan civil service board and 4 out of 5 of their seats were competitive more than I think New York and California combined.