US president Joe Biden takes his pitch for re-election to South Carolina, where Black voters helped propel him to the presidency, on Monday in a visit aimed at shoring up a critical constituency whose support has waned since he took office. Mr Biden's trip, to the Mother Emanuel AME Church in Charleston, where an avowed white supremacist gunned down nine Black parishioners in 2015, comes as his campaign sharpens its attacks on Donald Trump, the former president who is the frontrunner for the Republican Party's 2024 nomination. Advertisement On Friday, Mr Biden portrayed Mr Trump as a threat to democracy...