Virginia Senator Tim Kaine – Democrat Hillary Clinton’s newly announced presidential running mate – has made his national debut, saying: “America was not built on fear”.

Mr Kaine’s upbeat remarks contrasted with Republican Donald Trump’s pessimistic convention speech.

The 58-year-old moderate Democrat could appeal to Republicans who have been unsettled by Mr Trump’s candidacy.

However, the pick is seen as a blow to more left-leaning Democrats.

Mrs Clinton’s one-time rival, Senator Bernie Sanders, waged a strong campaign, championing liberal causes such as universal health care coverage.