Conservative Party Chairman Grant Shapps told the party conference defecting Mark Reckless has "abused" their trust.
"Today your trust has been abused, you have been cheated, but worse, the people of Rochester and have been cast aside," Shapps said.
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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.