The Gingrich Senators and Party Polarization in the U.S. Senate

  title={The Gingrich Senators and Party Polarization in the U.S. Senate},
  author={Sean M. Theriault and David W. Rohde},
  journal={The Journal of Politics},
The political parties in the Senate are almost as polarized at they are in the House. Nevertheless, the explanations for party polarization work better in the House than they do in the Senate. In this article, we argue that the polarization in the House has directly contributed to polarization in the Senate. We find that almost the entire growth in Senate party polarization since the early 1970s can be accounted for by Republican senators who previously served in the House after 1978—a group we… 

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