George Osborne has joked that Ed Miliband's speech to last week's Labour Party conference was "so forgettable, he forgot it himself".
Mr Miliband forgot a key passage on the deficit, something the Chancellor said was a "disqualification for the high office he seeks".
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The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.