Thousands of demonstrators streamed through the streets of Washington singing, shouting and chanting against the recent police killings of unarmed black men.
Shouts of 'Black lives matter', 'Hands up, don't shoot', and 'I can't breathe' were heard as a wide range of Americans from different ethnic backgrounds walked peacefully through the capital.
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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.