Iowa caucus 2024: What you need to know about the Republican vote

Every four years, Iowa is briefly catapulted to the centre of the political universe as it kicks off the election year race for the White House.

In a few hours, Republicans announce who they have chosen to represent the party against Democratic President Joe Biden in November's presidential election.

US media has already called the race, projecting that ex-president Donald Trump has won the contest easily.

Voters in Iowa braved freezing conditions to cast their votes in a state which likes to do things a little differently from other places.

For a start, the vote is called a caucus.

Most states run primary contests to nominate a presidential candidate but caucuses have a different, and more complicated, process.

Primaries are a kind of mini-election. Voters cast their ballots privately, either in person or by post, over the course of polling day.

Caucuses instead require party members to attend a location, in person, at a specific time.

At schools, community centres and churches across the state, representatives for the candidates make speeches before those present cast their votes by writing down a name.

Most states have moved away from caucuses in favour of primaries, but the Iowa Republican Party - along with those in Nevada, Idaho, Missouri, North Dakota, Hawaii, Wyoming and Kentucky - have all stuck to the system.

Voting started shortly after 19:00 local time (20:00 ET / 01:00 GMT) at about 1,700 precinct meetings across the state.

Results will be submitted to the Iowa Republican Party and a winner is expected to be announced on Monday night in the hours after the vote.

US media has projected Mr Trump as the winner based on entrance polls and their own data.

You can follow the results as they come in, and all the reporting by BBC teams on the ground in Iowa, on our live page.

A special election programme will be broadcast on the BBC News television channel from 19:00 ET (01:00 GMT).

You can also listen to an Americast podcast from Iowa from about 22:00 ET (03:00 GMT).

The Republican field has been whittled down to four main candidates: former president Donald Trump, Florida Governor Ron DeSantis, former UN ambassador Nikki Haley and biotech entrepreneur Vivek Ramaswamy. Former Arkansas governor Asa Hutchinson is also running and former New Jersey governor Chris Christie dropped out a week ago.

Ahead of the caucuses, Mr Trump dominated the field, and his campaign boasted they were aiming for a blowout victory in the caucuses.

His chief rivals in Iowa are Mr DeSantis - who has sought to tack to Mr Trump's right by fighting a campaign on culture war issues - and Ms Haley, who has fought a more moderate campaign on abortion and foreign policy issues.

Mr Trump has frequently repeated his false claims that he won the 2020 election and has energised supporters by accusing the Biden administration of mounting a political witch hunt against him.

The actual prize Republicans are fighting for in Iowa is minimal. Candidates will split a measly 40 delegates, a little more than 1% of the total number in play at the Republican National Convention in July.

But a win for any candidate in Iowa can help energise their campaign at a crucial early stage and potentially propel them to victory in the primaries.

It also marks the first time the country can see how a candidate fares in an actual election, and can generate significant attention in the media.

Former president Donald Trump has towered over the Republican field since he announced his candidacy in November 2022. His rivals have struggled to dent his support among the party's increasingly populist base.

Republican pollster Whit Ayers told the BBC that "survival and momentum" would be key for the anti-Trump candidates in the contest.

If Nikki Haley could beat [Ron] DeSantis for second place, that would give her a substantial boost, he observed.

"Donors want to support a winner. If you can't get votes, you can't get money."

Mr Trump, 77, has a commanding lead in the polls over his nearest rivals in Iowa.

The final poll of the Republican race there put him as the first choice of 48% of likely caucusgoers. Ms Haley was second, with 20%, while Mr DeSantis had slipped to third, at 16%.

Mr Ayers observed that voters can be split into three categories: People who will never vote for Mr Trump, staunch supporters of his agenda and a third category who are interested in alternatives.

"About half of the party are 'maybe Trump' voters," he says.

"They are at least interested in who the alternatives are, they're maybe concerned about the amount of baggage he carries, his focus on the past, his concern with grievances as opposed to policies. So they are open to alternatives."

Iowa has a pretty poor record of picking the eventual nominee - especially when it comes to choosing Republicans. Donald Trump is proof of that.

In 2016, he came second, languishing behind evangelical Texas Senator Ted Cruz. Neither of Mr Trump's two predecessors as Republican nominee won the state either.

In fact, George W Bush was the last non-incumbent Republican president to win both the state and the nomination in 2000.

Mr Ayers told the BBC that Iowa's problem picking candidates reflected how its population was "completely different to much of the rest of the country".

"On the Republican side there are far more evangelicals than there are nationally. On the Democratic side there are almost no African-Americans in Iowa," he observed, noting that the group is a key pillar of the Democratic voting coalition.

This year the Democrats have chosen to prioritise states with a more racially diverse make-up than Iowa, which is overwhelmingly white.

Instead, the party's campaign will begin in South Carolina on 3 February and Nevada on 6 February.

Iowa voters will instead cast their ballots by mail, which will be counted on 5 March.

What do you want to know about the Iowa caucuses and the 2024 US election? Our experts will answer your questions on 15 January.

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