Des Moines, Iowa | Leading lights of the Democrats' remaining presidential field are battling it out for what they describe as the "most important Iowa caucus in history", making their final appeals for support in a race that has pitted left-leaning progressives against the party's establishment middle ground.

In a series of of frenzied last-ditch events across Iowa at the weekend, Bernie Sanders, Joe Biden, Elizabeth Warren, Pete Buttigieg and Amy Klobuchar mapped out why each of them has the goods to beat President Donald Trump.