At 80

US President Joe Biden says he will seek a second White House term in 2024, a decision that will test whether Americans are ready to give the 80-year-old Democrat another four years in office. Mr Biden made his announcement in a slickly produced video released by his new campaign team, in which he declares it is his job to defend American democracy. It opens with imagery from the January 6, 2021 attack on the US Capitol by supporters of former president Donald Trump. “When I ran for president four years ago, I said we’re in a battle for the soul…