
The United States was holding its biggest day of voting of the year on Tuesday before a likely November rematch for the White House between Joe Biden and Donald Trump.
Fifteen states were holding Republican contests on “Super Tuesday” including the two most populous, California and Texas, with Mr Trump looking to build up an impregnable lead over his rival for the party’s nomination, Nikki Haley. More than a third of delegates - 865 of 2,429 - were up for grabs, with at least 1,215 needed to win the nomination.