Bernie Sanders releases letters from doctors deeming him fit for presidency

Sen. Bernie Sanders released letters from his primary physician and two cardiologists on Monday stating that the 2020 candidate "has the mental and physical stamina to fully undertake the rigors of the Presidency."

Why it matters: The 78-year-old Sanders has faced questions about his health in the wake of a medical procedure he had after suffering a heart attack in October. Sanders included his health history and results from recent lab tests in the release.