Freezing cold with a larger population of pigs than people, rural Iowa can make or break a presidential campaign. And Donald Trump has taken a significant step towards becoming the Republican Party presidential candidate with a record win in the state’s caucuses.

He won 51 per cent of the vote, a remarkable comeback landslide. Florida governor Ron DeSantis got 21 per cent, and former ambassador to the UN Nikki Hayley wasn’t far behind him on 19 per cent.

One of the poorer performing candidates, Vivek Ramaswamy has announced that he is dropping out of the contest

The Iowa race represents the first stage in the Republican selection process with the winner going on to face Joe Biden in November’s presidential election.

What does Donald Trump’s record win in Iowa mean for Republicans and the US?