Eurostar has said it expects to resume a normal service on Wednesday after its trains were disrupted by striking French ferry workers.
Eurotunnel has said it shuttle services, which were also affected, are now operating to schedule in both directions.
A blockade by striking ferry workers in Calais has left "the local environment is in chaos ... there is gridlock", according to a Eurotunnel spokesman.
He said that in recent days the pattern of migrant activity has spread from attacking trucks on motorways to trying to access the terminal.
He said: "There are migrants everywhere which means we have to control the trucks before they get to the site."
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.