Former President Donald Trump was back on Truth Social to poke fun at Joe Biden’s performance at the Nato press conference, referring to a moment when the president mistakenly identified Trump as his vice-president – rather than Kamala Harris.

“Crooked Joe begins his ‘Big Boy’ Press Conference with, ‘I wouldn’t have picked Vice President Trump to be vice president, though I think she was not qualified to be president,'” Trump wrote on Truth Social mocking the president’s gaffe.

“Great job, Joe!” he added.

Biden responded on his X account: “Yes I know the difference. One’s a prosecutor, and the other’s a felon.”

Harris started her career in the 1990s as a prosecutor in California before being elected the state’s attorney general.

Trump was found guilty business fraud at his hush-money trial in May and is awaiting sentencing – though his lawyers asked the judge to toss out the verdict after the US Supreme Court’s immunity ruling.

In a separate Truth Social post, Trump made fun of Biden mistakenly saying commander-in-chief instead of chief-of-staff and posted a clip of the moment with the caption “Crooked Joe”.