This week’s cover

Democrats argue, rightly, that Mr Trump is unfit to be president. But the debate and its aftermath have proved Mr Biden unfit, too. First, because of his mental decline. Second, because of his insistence, abetted by his family, senior staff and Democratic elites, that he is still up to the world’s toughest job. Mr Biden’s claim that this election is between right and wrong is ruined by the fact that the existence of his campaign now depends on a lie. He deserves to be remembered for his accomplishments and his decency rather than his decline. Senior Democrats must call for change. It is not too late.