Joe Biden's doctor says he is "fit for duty" and "no new concerns" have been identified after the US president's annual medical examination. Mr Biden‚ whose health has been under scrutiny ahead of November's presidential election‚ underwent the assessment on Wednesday. White House physician Dr Kevin O'Connor said that Mr Biden "fully executes all of his responsibilities without any exemptions or accommodations". "Everything's great‚" Mr Biden said. The 81-year-old president received...