Four states, one American territory and Democrats living abroad held their primaries on Tuesday.<\/p>\n\n\n\n
The result means US voters face a rematch of the 2020 presidential election in eight months’ time.<\/p>\n\n\n\n
The nominations will be made official at party conventions this summer.<\/p>\n\n\n\n
The 81-year-old president said on Tuesday evening that he was “honoured” voters had backed his re-election bid “in a moment when the threat Trump poses is greater than ever”.<\/p>\n\n\n\n
Citing positive economic trends, he asserted the US was “in the middle of a comeback” but faced challenges to its future as a democracy, as well as from those seeking to pass abortion restrictions and cut social programmes.<\/p>\n\n\n\n
“I believe that the American people will choose to keep us moving into the future,” Mr Biden said in a statement from his campaign.<\/p>\n\n\n\n
Incumbency gave Mr Biden a natural advantage and he faced no serious challengers for the Democratic nomination.<\/p>\n\n\n\n
Despite persistent concerns from voters that his age limits his ability to perform the duties of the presidency, the party apparatus rallied around him.<\/p>\n\n\n\n
Meanwhile, Mr Trump, 77, remains very popular with the Republican voter base, which has propelled him to victory in primary after primary over well-funded rivals.<\/p>\n\n\n\n
His campaign for a second term in the White House has zeroed in on stricter immigrations laws, including a pledge to “seal the border” and implement “record-setting” deportations.<\/p>\n\n\n\n
Mr Trump has also vowed to fight crime, boost domestic energy production, tax foreign imports, end the war in Ukraine and resume an “America first” approach to global affairs.<\/p>\n\n\n\n
Tuesday night’s results do not come as a shock, as both men have dominated their races so far.<\/p>\n\n\n\n
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