"Blank US Map (states only)" by Heitordp via Wikimedia Commons, licensed under CC BY-SA 3.0.

Presidential, Senate, and House returns courtesy of the MIT Election Data and Science Lab (MEDSL), licensed under CC0 1.0 Public Domain.

Gubernatorial and recent election data adapted from Wikipedia contributors, licensed under CC BY-SA 4.0, and certified state election returns.

All built-in candidate portraits included in Tally538 are official U.S. federal government works in the Public Domain (17 U.S.C. § 105), with the following exceptions:

• Hillary Clinton: Photo by Gage Skidmore, licensed under CC BY-SA 3.0.
• Mitt Romney: Photo by Gage Skidmore, licensed under CC BY-SA 3.0.
• Michael Dukakis: Historical photograph from the Bettmann Archive (no known copyright restrictions via Wikimedia Commons).

User-Uploaded Content: Tally538 is not responsible for the copyright status, licensing, or attribution of any custom images uploaded by users. Users are solely responsible for the legal right to any images they upload or share.