From a calamitous debate to calls to drop out: the week that left Biden’s re-election bid hanging by a thread

The president left viewers and supporters startled with his debate performance - and in the days since, has tried to calm worried donors and Democrats

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History may record them as eight days that sunk a presidency, or at least the rockiest road to a convention in living memory - a week that has left Joe Biden's re-election bid hanging by a thread.