The Democrats hope the entry into the 2020 presidential race of the first black woman and Asian American increases their chances of beating Donald Trump.
Joe Biden selects California Senator Kamala Harris as running mate
Former VP Joe Biden now has a substantial delegate lead over Bernie Sanders after winning in Michigan, Missouri, Mississippi and Idaho.
Voters from Egypt, Italy, the Netherlands travelled to Paris on Monday to choose their preferred Democratic candidate to run against Donald Trump.
The results of the Iowa Caucus were delayed, causing chaos on the first key night of the US democratic party primaries.
About two-thirds of voters participating in the caucus said they would rather see the Democratic Party nominate a candidate who "can beat Donald Trump."
After a tumultuous decade, the percentage of voters who identify as Republican or Democrat has remained stable, but there are big changes inside the numbers.
The California lawmaker had announced her bid for the White House a year ago
His campaign ad promotes Bloomberg's record as mayor and then promises "to rebuild the country and restore faith in the dream that defines us."
Billionaire media mogul and philanthropist Michael Bloomberg is said to be considering putting himself forward as a possible Democrat candidate for the 2020 US presidential race.