Gavin Williamson visits the US amid affair claims

Is he the meteorically rising star of the Tory Party, even a future Prime Minister – or a man whose past may derail his ambitions?

Defence Secretary Gavin Williamson is visiting Washington DC as questions swirl at home over a reported affair with an office colleague before he became an MP. In the past hour he has been greeted at the Pentagon by his US counterpart James Mattis.