The Republican candidate is projected to win the states of Kentucky, Indiana and West Virginia, while Ms Harris is expected to win Vermont.

Boris Johnson has been “fired for banging on about his book” during a guest appearance on Channel 4’s coverage of the US election, according to the programme’s co-host Krishnan Guru-Murthy.

The run-up to the election has been marked by concerns over disinformation, foreign influence and threats to election workers and voting systems.

Researchers found two daily peaks in activity – at around 8am and 6pm – ‘was associated with reduced colorectal cancer risk’.