Joe Biden and Donald Trump have both passed the delegate thresholds to clinch their parties' nominations

UNITED STATES — US President Joe Biden and his predecessor Donald Trump have both passed the delegate thresholds to clinch their parties' nominations. They each won several states in primary elections on Tuesday to propel them over the finish line. The two 2020 contenders will provide the US with its first rematch in a presidential election for 70 years... bbc.com