Harris aims at Trump's mental fitness for office as she turns 60

ATLANTA, Oct 20 (AFP): Kamala Harris turns 60 on Sunday in the final stretch of a knife-edge election battle with 78-year-old Donald Trump, who is now the oldest presidential candidate in US history.
Age has been a crucial factor in a campaign that President Joe Biden quit over fears about his capacity, and where Harris has steadily taken aim at Trump's mental fitness for office.
With just over two weeks before Election Day, the Democratic vice president and the Republican billionaire are in a fierce race that polls suggest is effectively tied.
The two candidates will on Sunday again be in Pennsylvania, the battleground that is considered a must-win among the seven key states expected to decide the November 5 election.
Biden passed the torch to Harris after a disastrous debate against Trump raised concerns in the Democratic Party about his mental sharpness.