Vice President Kamala Harris plans to release a report Saturday on her medical history and health that a senior campaign aide said would show “she possesses the physical and mental resiliency” needed to serve as president. Harris' advisers hope to use the moment to draw a contrast with Republican Donald Trump, who has released only limited information about his health over the years, and raise questions about his fitness to serve, the aide said. Harris' office did not go into detail about how thorough the report on her medical history would be.