Vice President Kamala Harris is in “excellent health” and “possesses the physical and mental resiliency” required to serve as President, her doctor said in a letter released Saturday that summarises her medical history and status. Dr Joshua Simmons, a US Army colonel and physician to the vice president, wrote that Harris, 59, maintains a healthy, active lifestyle and that her most recent physical last April was “unremarkable”.

She “possesses the physical and mental resiliency required to successfully execute the duties of the Presidency, to include those as Chief Executive, Head of State and Commander in Chief,” he wrote. 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, according to a campaign aide who spoke on condition of anonymity to discuss sensitive matters.