Licence
Our public posts, charts, tables and public data files are licensed under the Creative Commons Attribution 4.0 International licence (CC BY 4.0). You may copy, share and adapt them for any purpose, including commercial use, as long as you give credit.
How to credit us
Use this attribution, with a link to the page or file you used:
Source: Carmena’s Overton & Electoral Research, CC BY 4.0
If you changed the data or the chart, say so, for example “adapted from Carmena’s Overton & Electoral Research”.
How to cite a post
Carmena’s Overton & Electoral Research. “Post title.” Published date. URL. Accessed date.
For example: Carmena’s Overton & Electoral Research. “Nearly half of the ‘party’ in early-vote trackers is a model.” Oct 23, 2026.
Each post has a “Cite this” box with the citation ready to copy.
How to cite a data file
Carmena’s Overton & Electoral Research. “File title” (CSV). Last updated date. URL. Licensed CC BY 4.0.
What the licence does not cover
- Commercial datasets, polling and research. In-depth data, custom polls and research we provide under a commercial licence are not covered by CC BY 4.0. Their terms are set in each licence.
- Other organisations’ figures. Numbers we quote from NBC News / TargetSmart, the Silver Bulletin, 538, UF Election Lab and other sources belong to them. Our licence does not extend to them; credit the original source.
- State records. Some states restrict how their voter files may be used, including commercial use. Our public files contain aggregates only, but if you work with the underlying state files, their terms apply.
- Our name and logo. You may use our name to credit us. The licence does not let you use our name or logo in a way that suggests we endorse you.