How will the Democratic party decide on who will face Trump in November's US presidential election?

US Democrats are racing to decide who will face President Donald Trump in the upcoming presidential election in November.

Primaries and caucuses are now being held until Super Tuesday on March 3. After that, the Democratic party nominee will be selected by delegates at the National Convention in July.

But it is not a straightforward process. We explain how it works.

Source: Al Jazeera