Afternoon. Joe Biden mistakenly called Kamala Harris “vice-president Trump” and introduced the Ukrainian president, Volodymyr Zelenskiy, as Vladimir Putin in the 81-year-old’s latest gaffes.
Biden was wrapping up a Nato summit in Washington DC, where he faced a barrage of questions on his mental fitness. Shortly after he finished speaking, the Connecticut congressman Jim Himes, the top ranking Democrat on the House intelligence committee, called on Biden to step down from the campaign.