FILE - Vice President Kamala Harris delivers remarks at a Sigma Gamma Rho Sorority gathering in Houston, July 31, 2024, in Houston. (AP Photo/LM Otero, File)
This composite left to right, shows Minnesota Gov. Tim Walz, center, July 3, 2024, in Washington, Sen. Mark Kelly, D-Ariz., June 4, 2024, in Washington, Pennsylvania Gov. Josh Shapiro, July 20, 2024, in Pittsburgh, and Kentucky Gov. Andy Beshear in Frankfort, Ky., July 22, 2024. As Vice President Kamala Harris prepares to announce her running mate, a new poll from the Associated Press-NORC Center for Public Affairs Research finds that several of the top potential contenders for the role are largely unknown to voters. (AP Photo)