Joe Biden is now the Democratic Party's presumptive nominee to take on Donald Trump in the 2020 presidential election after Bernie Sanders suspended his campaign.

The race to be named the Democrats' official nominee began with some two dozen candidates with starkly different backgrounds, ideologies, strengths and weaknesses, but eventually whittled down to a two-horse race between the two septuagenarians.

Mr Biden, 77, who served as Barack Obama’s vice president for eight years, believes his centrist platform can win back Obama-Trump voters in key swing states.

But Mr Sanders' progressive platform proved hugely popular among young people and Hispanic voters. Mr Sanders, 78, said that while he would work with Mr Biden he would also continue to fight for his democratic socialist policies.

Mr Biden will now have to bring Sanders supporters into the fold if he is to defeat Mr Trump in November.

See the latest news from Super Tuesday's 2020 result.