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Visualizing the US congress

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The ideology scores of US Congress members over time, quantified from how similarly they voted on bills. I present an interactive visualization for the US Congress members’ ideology. The data used are ideology scores of US Congress members 1789-2015. The ideology scores are quantified from the Congress members’ voting records using the DW-NOMINATE method, which puts Congress members with similar voting patterns closer together. This interactive visualization shows a clear picture of the polarization in the US Congress over time, and offers a platform for people to explore the history of ideology changes in congress.

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  • 06/03/2018
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