Terms of use

Polis, including its software, design, charts, written explanations and the figures it calculates (bill stages, party-line votes, party unity, pass rates and the like), is © 2026 Derek Roberts. All rights reserved.

The legislative records underneath are public. Polis does not claim them, and you are free to get them from the sources listed on the methodology page.

• Read the site and use it for your own research, reporting, teaching or advocacy.
• Link to any page.
• Quote a figure or a short passage, or share a screenshot of a chart, if you credit Polis and link to the page it came from.

• Copy the site, or a substantial part of it, to build or feed another site, product or dataset.
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• Copy the site’s code, design or charts.
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Polis is an independent project and is not affiliated with any legislature or government. It is not the official record: sources can be late or wrong, and so can the figures calculated from them. Check the official record, which every bill links to, before you rely on anything here.

The site is provided as it is, with no warranty of any kind, and its owner is not liable for loss arising from its use.

These terms may change. The date at the top of this page says when they last did. Using the site means you accept the terms as they stand that day.