Joe Biden standing alongside Senator Elizabeth Warren and Senator Bernie Sanders during the fifth 2020 campaign debate in Atlanta, Georgia, US [File: Brendan McDermid/Reuters]
Six US Democratic presidential hopefuls will take the stage at Drake University in Des Moines, Iowa on Tuesday night for the seventh of 10 planned debates.
The debate, hosted by CNN and the Des Moines Register newspaper, is set to begin at 8pm local time (02:00 GMT on Wednesday).
It is the last before the all-important Iowa caucuses on February 3, making it arguably the most important night of the primary season so far. The latest polls from the state, most notably a Des Moines Register/CNN/Mediacom released on Friday, shocked many observers by showing Senator Bernie Sanders in