Democrats delay national convention to nominate presidential candidate

The US presidential race has been disrupted as Democrats were forced to postpone their national convention until August 17, delaying the likely nomination of Joe Biden to challenge Donald Trump for the White House. The party was also faced with another problem when a Wisconsin court refused to delay the state's primary next Tuesday, despite warnings that the vote could put the health of thousands at risk. Several other states have postponed their primaries on virus fears, leaving the Democratic nomination race in limbo just when it should be coming to a high-profile...