2020 election: Joe Biden wins New Jersey and Delaware primaries

Meanwhile, Donald Trump has won Delaware's Republican presidential primary

Mr Biden is the presumptive Democratic nominee (AP)

Joe Biden has won Delaware and New Jersey's Democratic presidential primaries.

Mr Biden faced Vermont senator Bernie Sanders on the mostly mail-in New Jersey ballot on Tuesday, even though as a longtime senator from Delaware before serving two terms as vice president, Mr Biden has accumulated enough delegates to become the party's presumptive nominee.

New Jersey's already-late primary was pushed a month later because of the Covid-19 pandemic, and Democratic governor Phil Murphy mandated that the election take place mostly by mail-in ballots.

New Jersey's 14 electoral votes have gone to Democrats in every presidential election since 1988.

Meanwhile, Donald Trump has won Delaware's Republican presidential primary.

Republicans have coalesced around Mr Trump, who is seeking his second term in office.

Republicans are also holding their presidential nominating convention next month.

Associated Press