Joe Biden appears to have stolen a march on his closest rival Bernie Sanders in early projections from the ballots on Super Tuesday.
Fourteen states and the US territory of American Samoa are voting to decide who will run against Donald Trump in the presidential election in November.
A total of 1,344 delegates to the Democratic Convention in July are up for grabs on Super Tuesday. A candidate needs to secure at least 1,991 to secure the party’s nomination.
Early projections from Sky’s US partner NBC suggest Joe Biden has won the Virginia, Alabama, Tennessee, North Carolina and Oklahoma primaries, with Bernie Sanders coming top in his home state of Vermont and in Colorado.
Meanwhile former New York mayor Michael Bloomberg, who is estimated to have spent £500m on political advertising, appears to have taken American Samoa.
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The states voting on Super Tuesday are Alabama, Arkansas, California, Colorado, Maine, Massachusetts, Minnesota, North Carolina, Oklahoma, Tennessee, Texas, Utah, Virginia, Vermont and US territory American Samoa. Democrats living abroad have also been casting their votes.