Sources
The election data published by US Midterm 2026 is compiled from the publicly available sources listed below. Each figure is shown with its source and the time it was last updated. US Midterm 2026 does not declare winners; race calls are attributed solely to the Associated Press (AP) and Decision Desk HQ.
Data sources
| Data | Source |
|---|---|
| Vote counts | Official results pages of state election authorities, and data services that compile these results |
| Race calls | The Associated Press (AP) and Decision Desk HQ |
| Race ratings | Cook Political Report, Sabato’s Crystal Ball and Inside Elections |
| Forecast models | Public forecast models, including Decision Desk HQ |
| Polls | Public releases by polling organizations; the generic-ballot average is calculated by US Midterm 2026 |
| Poll closing times | Public sources that compile state election laws and election calendars |
| Candidates | Official candidate lists published by the states, and news reports |
| Composition of Congress | The Clerk of the U.S. House of Representatives and official U.S. Senate records |
| District boundaries | U.S. Census Bureau data and the congressional maps in force in each state |
| Market prices (selected English-language pages only) | Polymarket, through its official embed |
News sources we follow
Headlines in our news feed come from these outlets:
- ABC News
- BBC News
- CBS News
- Fox News
- NPR
- New York Post
- PBS News
- Politico
- The Guardian
- The Hill
- The Independent
- The New York Times
- The Washington Post
Data collection principles
Data is compiled only from publicly available sources and in accordance with the terms of use and access rules set by the source owners. Content obtained from these sources is not republished in full; only the necessary data and brief summaries are used, with attribution. If an automated source becomes unavailable, figures are entered by an editor from the official source, and this is indicated alongside the figure.
Requests from source owners
Source owners may send requests concerning the use of their content to [email protected]. Such requests are reviewed without delay.
Reporting an error
If you believe a figure is incorrect, please write to [email protected] with a link to the page concerned. Corrections are made as described in our Editorial Standards.