evidence: US President Joe Biden has said only the "Lord Almighty" could convince him to end his bid for re-election, as he sat for a rare primetime interview in an effort to calm Democratic concern over his candidacy. [...] The president answered questions more clearly than he did on the debate stage last week, but his voice again sounded weak and occasionally hoarse. [...] "This is not a decision I’ve come to lightly, but there is simply too much at stake to risk a second Donald Trump presidency. That’s why I respectfully call on President Biden to step aside as the Democratic nominee for a second term as President and allow for a new generation of leaders to step forward."