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Show HN: Hemicycle – Visualizing US bill cosponsors by party

Hemicycle is a tool that visualizes US bill cosponsors by political party, offering a graphical view of legislative support in Congress.

Background

- Hemicycle is a web tool that visualizes U.S. House and Senate bill cosponsors by party, arranging them in a curved, semicircular seating chart (like the European Parliament's hemicycle layout). - The U.S. Congress does not actually seat members this way — the visualization is inspired by foreign parliaments and used here to make partisan sponsorship patterns visible at a glance. - A "cosponsor" is a member of Congress who signs onto a bill after its main sponsor introduces it; cosponsorship patterns reveal which bills cross party lines and which are purely partisan. - The project was posted on Hacker News ("Show HN"), a section of the tech-news site Y Combinator's Hacker News where makers share personal projects. - For readers following U.S. politics or data-visualization tools, Hemicycle offers a quick, graphical read on how polarized (or bipartisan) a given piece of legislation is.

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