id author title date pages extension mime words sentence flesch summary cache txt 08612n51k9f Anne Elizabeth Baker The Electoral Causes of Party Polarization in Congress 2011 .txt text/plain 217 6 30 I find party leaders helped make congressional caucuses more ideologically homogeneous over time by providing party support to ideological challengers and open-seat contestants and thereby significantly improving their likelihood of gaining seats; by targeting resources toward races against moderate incumbents of the opposite party with great success; and by providing party monies to protect their own moderate incumbents at the expense of making those incumbents more vulnerable to seat-challenges and targeting by the other party. In response to this lacuna, in this dissertation I present evidence that over the past thirty years party leaders have helped bring about party polarization in Congress in the way they have distributed party campaign funds to candidates. cache/08612n51k9f.txt txt/08612n51k9f.txt