Kamala Harris formally chosen as Democratic nominee

US Vice-President Kamala Harris has passed the threshold to clinch the Democratic presidential nomination in a vote of party delegates.

Harris says she was "honoured to be the presumptive nominee" as the virtual roll call continues ahead of the Democratic National Convention in Chicago later this month.

Harris is the first black woman and first South Asian woman to become the White House standard-bearer for a major US political party.

If she defeats Donald Trump, the Republican nominee, in November she would be America's first female President.

 Source: BBC