Donald Trump is the Republican nominee for president for the third consecutive election. What would he do if he wins this time?
When he was defeated by Joe Biden after his first term in office, the country was in the midst of Covid, lockdowns and social unrest.
It followed a campaign in which restoring both economic health and law and order were his central messages.
Here are his policy pledges this time.
Economy
This is the biggest issue for voters and it’s the pinch of high food and housing costs that seems to be shaping their sentiment rather than the robust growth and low unemployment.
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Inflation has fallen steeply from a 40-year high in 2022, but the former New York businessman has retained a persistent polling advantage on the economy over his Democratic opponents.
A president’s power to lower prices directly is very limited. Trump has pledged to expand US energy production, opening areas such as the Arctic wilderness to oil drilling, which he argues would lower energy costs, though analysts are sceptical.
He says he can reduce housing costs by preventing some undocumented immigrants from getting mortgages and deporting others, and by launching a home building programme on federal land.
Firstly, he wants to extend the cuts he enacted in 2017, which are due to expire next year. That was the biggest tax overhaul in decades, aimed at simplifying the tax code and promoting growth and investment.
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The largest cuts went to businesses and the wealthy, which Democrats have called to reverse.
The Republican also wants to shave a further percentage point off corporation tax – and has floated an even bigger cut to 15%.
He has proposed making tipped income tax free, a proposal that his opponent Kamala Harris subsequently backed, too.
Trump has also called on abolishing the tax on Social Security payments, a move that would be welcomed by retired Americans but would at the same time punch a big hole in the fund.
Trade
The former president brought the era of US free trade to a juddering halt when he became president, but his tariffs on Chinese imports were largely retained and even expanded by Joe Biden.
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This time around he has proposed new 10-20% tariffs on most foreign goods with imports from China bearing the brunt at 60%.
It is part of his attempt to promote homegrown manufacturers and stop outsourcing, but some economists have warned this could push up prices for consumers.
Immigration
This tops his list of priorities as it did in 2016 when “Build the wall” was his signature slogan.
The number of border crossings hit record levels at the end of 2023, but has fallen this election year.
Trump has vowed to seal the border by completing the wall and increasing enforcement.
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He has also promised the biggest mass deportations of undocumented migrants in US history.
His vice-president pick, JD Vance, said they would start by removing a million people, but experts told the BBC that deportations on that scale would face legal and logistical challenges. There are also claims it could slow economic growth.
Children of undocumented residents would no longer be eligible for citizenship under another Trump policy, although this would face significant legal obstacles.
Abortion
This is the first presidential election since the Supreme Court overturned the constitutional right to abortion in 2022, and Trump has struggled to find a consistent message.
The three judges he appointed while president were pivotal in the landmark decision, which Democrats have used to rally supporters as abortion restrictions have been introduced in numerous states.
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Trump himself has regularly said states should be free to decide their own laws on abortion.
But in recent weeks he has tried to walk a tightrope, taking a more moderate stance while trying not to alienate his conservative base.
He criticised Florida’s six-week ban, provoking an angry backlash, but also said he would oppose a ballot measure in the state establishing the right to an abortion.
Ukraine and Nato
The Republican has an isolationist foreign policy and wants the US to disentangle itself from conflicts elsewhere in the world.
He has pledged to end the war in Ukraine “within 24 hours” through a negotiated settlement with Russia, a move that Democrats say would embolden Vladimir Putin.
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Trump gave no details on what he thinks each side should give up in such a deal, and the Kremlin has said nothing can be done in 24 hours.
Trump has also said he would stop the cash flowing to Ukraine. Mr Biden signed off $61bn in military aid for Ukraine in April.
On Nato, he thinks countries that fall short of the advisory 2% of GDP spent on defence should forego the protection that comes with membership.
Israel-Gaza war
Trump has positioned himself as a staunch supporter of Israel and condemned pro-Palestinian supporters on US college campuses.
But he has also at times been critical of the way Israel has conducted the war.
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He has said the war would not have happened if he had been president but offered no details on how he would end it.
As president he angered Palestinians by moving the embassy to Jerusalem and his administration stopped calling Israeli settlements in the West Bank, which contravene international law, illegal.
Healthcare
In his top 20 priorities, Trump promises not to cut Medicare, which is federally provided health insurance for older people.
While president he tried unsuccessfully to dismantle the signature legislation of President Barack Obama, the Affordable Care Act, which extended insurance to millions more people.
He still criticises the law, which remains popular, but in March he said on Truth Social he would not undermine it.
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Recently he called for taxpayer-funded fertility treatment, but it’s unclear if such a large expense has the support of Republicans in Congress.
Crime
He has pledged to demolish drugs cartels, crush gang violence and rebuild Democratic-run cities that he says are overrun with crime.
His Republican policy platform vows to restore safety in neighbourhoods by replenishing police departments and protecting officers from “frivolous lawsuits”.
Democrats point to his promise to pardon hundreds of convicted January 6 rioters as contradictory to his law-and-order stance.
They also point to the fact violent crime was down 6% in 2023 and murders down by 13%, according to FBI data.
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Climate
As president, Trump rolled back hundreds of environmental protections, including limits on carbon dioxide emissions from power plants and vehicles, and protections for federal waterways.
This time, he is again vowing to cut regulations, particularly as a way to help the American car industry.
He has constantly attacked electric vehicles, promising to overturn Biden targets encouraging the switch to cleaner cars.
And he has long railed against offshore wind farms, promising to halt this source of renewable energy as soon as he is elected.
With just one day to go, the race for the White House is deadlocked – both at the national level and in the all-important battleground states.
The polls are so close, within the margin of error, that either Donald Trump or Kamala Harris could actually be two or three points better off – enough to win comfortably.
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There is a compelling case to make for why each may have the edge when it comes to building a coalition of voters in the right places, and then ensuring they actually turn out.
Let’s start with the history-making possibility that a defeated president might be re-elected for the first time in 130 years.
Trump could win because…
1. He’s not in power
The economy is the number one issue for voters, and while unemployment is low and the stock market is booming, most Americans say they are struggling with higher prices every day.
Inflation hit levels not seen since the 1970s in the aftermath of the pandemic, giving Trump the chance to ask “Are you better off now than you were four years ago?”
In 2024, voters around the world have several times thrown out the party in power, partly due to the high, post-Covid, cost of living. US voters also seem hungry for change.
Only a quarter of Americans say they are satisfied with the direction the country is going in and two-thirds have a poor economic outlook.
Harris has tried to be the so-called change candidate, but as vice-president has struggled to distance herself from an unpopular Joe Biden.
2. He seems impervious to bad news
Despite the fallout from the 6 January 2021 riot at the US Capitol, a string of indictments and an unprecedented criminal conviction, Trump’s support has remained stable all year at 40% or above.
While Democrats and “Never-Trump” conservatives say he is unfit for office, most Republicans agree when Trump says he’s the victim of a political witch-hunt.
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With both sides so dug in, he just needs to win over enough of the small slice of undecided voters without a fixed view of him.
3. His warnings on illegal immigration resonate
Beyond the state of the economy, elections are often decided by an issue with an emotional pull.
Democrats will hope it’s abortion, while Trump is betting it’s immigration.
After encounters at the border hit record levels under Biden, and the influx impacted states far from the border, polls suggest voters trust Trump more on the immigration – and that he’s doing much better with Latinos than in previous elections.
Trump’s appeal to voters who feel forgotten and left behind has transformed US politics by turning traditional Democratic constituencies like union workers into Republicans and making the protection of American industry by tariffs almost the norm.
If he drives up turnout in rural and suburban parts of swing states this can offset the loss of moderate, college-educated Republicans.
5. He’s seen as a strong man in an unstable world
Trump’s detractors say he undermines America’s alliances by cosying up to authoritarian leaders.
The former president sees his unpredictability as a strength, however, and points out that no major wars started when he was in the White House.
Many Americans are angry, for different reasons, with the US sending billions to Ukraine and Israel – and think America is weaker under Biden.
Despite Trump’s advantages, he remains a deeply polarising figure.
In 2020, he won a record number of votes for a Republican candidate, but was defeated because seven million more Americans turned out to support Biden.
This time, Harris is playing up the fear factor about a Trump return. She’s called him a “fascist” and a threat to democracy, while vowing to move on from “drama and conflict”.
A Reuters/Ipsos poll in July indicated that four in five Americans felt the country was spiralling out of control. Harris will be hoping voters – especially moderate Republicans and independents – see her as a candidate of stability.
2. She’s also not Biden
Democrats were facing near-certain defeat at the point Biden dropped out of the race. United in their desire to beat Trump, the party quickly rallied around Harris. With impressive speed from a standing start, she delivered a more forward-looking message that excited the base.
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While Republicans have tied her to Biden’s more unpopular policies, Harris has rendered some of their Biden-specific attack lines redundant.
The clearest of these is age – polls consistently suggested voters had real concerns about Biden’s fitness for office. Now the race has flipped, and it is Trump who’s vying to become the oldest person to ever win the White House.
This is the first presidential election since the US Supreme Court overturned Roe v Wade and the constitutional right to an abortion.
Voters concerned about protecting abortion rights overwhelmingly back Harris, and we’ve seen in past elections – notably the 2022 midterms – that the issue can drive turnout and have a real impact on the result.
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This time around, 10 states, including the swing state Arizona, will have ballot initiatives asking voters how abortion should be regulated. This could boost turnout in Harris’s favour.
The historic nature of her bid to become the first female president may also strengthen her significant lead among women voters.
4. Her voters are more likely to show up
The groups Harris is polling more strongly with, such as the college-educated and older people, are more likely to vote.
Democrats ultimately perform better with high-turnout groups, while Trump has made gains with relatively low-turnout groups such as young men and those without college degrees.
Trump, for example, holds a huge lead among those who were registered but didn’t vote in 2020, according to a New York Times/Siena poll.
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A key question, then, is whether they will show up this time.
5. She’s raised – and spent – more money
It’s no secret that American elections are expensive, and 2024 is on track to be the most expensive ever.
But when it comes to spending power – Harris is on top. She’s raised more since becoming the candidate in July than Trump has in the entire period since January 2023, according to a recent Financial Times analysis, which also noted that her campaign has spent almost twice as much on advertising.
This could play a role in a razor-tight race that will ultimately be decided by voters in swing states currently being bombarded by political ads.
Kamala Harris, the current vice-president, is the candidate for the Democratic Party. She joined the race after President Joe Biden dropped out and no other Democrats stood against her.
There are also some independent candidates running for president. One of the most prominent was Robert F Kennedy Jr, but he suspended his campaign in August and backed Trump.
The Democrats are the liberal political party, known for supporting civil rights, a social safety net and measures to address climate change.
In the 2024 election, issues highlighted by Harris include tackling the cost-of-living crisis and supporting abortion rights.
The Republicans are the conservative political party. They have stood for lower taxes, shrinking the size of the government and gun rights.
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Issues Trump has campaigned on include tackling illegal immigration and ending inflation to “make America affordable again”.
How does the US presidential election work?
The winner is not the person who gets the most votes overall.
Instead, both candidates compete to win contests held across the 50 states.
Each state has a certain number of so-called electoral college votes, partly based on population. There are a total of 538 up for grabs and the winner is the candidate that gets 270 or more.
All but two states have a winner-takes-all rule, so whichever candidate has the highest number of votes is awarded all of its electoral college votes.
Most states lean heavily towards one party or the other, so the focus is on about seven states where either of them could win. These are known as the battleground or swing states.
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It is possible for a candidate to win the most votes nationally – like Hillary Clinton did in 2016 – but still be defeated.
Most US citizens aged 18 or over are eligible to vote.
Each state has its own voter registration process and deadline.
Who else is being elected in November?
All of the attention will be on who wins the presidency, but voters will also be choosing new members of Congress – where laws are passed – when they fill in their ballots.
Congress consists of the House of Representatives, where all 435 seats are up for election, and the Senate, where 34 seats are being contested.
Republicans currently control the House, which initiates spending plans. Democrats are in charge of the Senate, which votes on key appointments in government.
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These two chambers pass laws and can act as a check on White House plans if the controlling party in either chamber disagrees with the president.
When will we know who has won the election?
Usually the winner is declared on the night of the election, but in 2020 it took a few days to count all the votes.
The period after the election is known as the transition, if there is a change of president.
This gives the new administration time to appoint cabinet ministers and make plans for the new term.
The president is officially sworn into office in January in a ceremony known as the inauguration, held on the steps of the Capitol building in Washington DC.
American voters go to the polls on 5 November to choose their next president.
US election results have sometimes been declared within hours of the polls closing, but this year’s tight contest could mean a longer wait.
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When is the 2024 presidential election result expected?
In some presidential races the victor has been named late on election night, or early the next morning. This time, the knife-edge race in many states could mean media outlets wait longer before projecting who has won.
Democrat Kamala Harris, the current vice-president, and Republican Donald Trump, the former president, have been running neck-and-neck for weeks.
Narrow victories could also mean recounts. In the key swing state of Pennsylvania, for example, a state-wide recount would be required if there’s a half-percentage-point difference between the votes cast for the winner and loser. In 2020, the margin was just over 1.1 percentage points.
0:53BBC’s Sumi Somaskanda explains when a new president will be announced
Legal challenges are also possible. More than 100 pre-election lawsuits have already been filed, including challenges to voter eligibility and voter roll management, by Republicans.
Other scenarios that could cause delays include any election-related disorder, particularly at polling locations.
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On the other hand, vote-counting has sped up in some areas, including the crucial state of Michigan, and far fewer votes will be cast by mail than in the last election, which was during the Covid pandemic.
When have previous presidential election results been announced?
The 2020 election took place on Tuesday 3 November. However, US TV networks did not declare Joe Biden the winner until late morning on Saturday 7 November, after the result in Pennsylvania became clearer.
In other recent elections, voters have had a much shorter wait.
In 2016, when Trump won the presidency, he was declared the winner shortly before 03:00 EST (08:00 GMT) the day after the election.
In 2012, when Barack Obama secured a second term, his victory was projected before midnight on polling day itself.
However, the 2000 election between George W Bush and Al Gore was a notable exception.
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The vote was held on 7 November, but the two campaigns went to war over a tight contest in Florida and the race was not decided until 12 December. The US Supreme Court voted to end the state’s recount process, which kept Bush in place as winner and handed him the White House.
What are the key states to watch in 2024?
Across the country, the first polls will close at 18:00 EST (23:00 GMT) on Tuesday evening and the last polls will close at 01:00 EST (06:00 GMT) early on Wednesday.
But this race is expected to come down to results from seven swing states. These are Arizona, Georgia, Michigan, Nevada, North Carolina, Pennsylvania and Wisconsin.
Polls close at different times in different regions. State-specific rules could prolong counting in some states, while other states may report partial figures moments after the last in-person vote is cast. Also, some absentee and mail-in ballots, including votes by members of the military and Americans living overseas, are normally among the last to be counted.
Georgia – Polls close in the Peach State at19:00 EST (00:00 GMT). Early and mail-in ballots will be counted first, ahead of in-person votes. Georgia’s top election official estimates that about 75% of votes will be counted within the first two hours, with a full tally possible expected by later in the night.
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North Carolina – Polls close thirty minutes after Georgia. North Carolina’s results are expected to be announced before the end of the night, however, complications may arise in areas that were hit by a hurricane in September.
Pennsylvania – Voting ends at 20:00 EST (01:00 GMT) in the Keystone State – the crown jewel of all the swing states in this election cycle. Like Wisconsin, Pennsylvania does not allow counting to begin until the morning of the election, leading to an expected delay in results. Experts agree that it may take at least 24 hours before enough votes are counted for a winner to emerge.
Michigan – Voting concludes at 21:00 EST (02:00 GMT) in the Wolverine State. Michigan allows officials to begin counting votes one week before election day, but they are not allowed to reveal the results until these polls shut. Michigan’s top election official has said that a result should not be expected until the “end of the day” on Wednesday.
Wisconsin – Results should come in shortly after polls close at 21:00 EST for smaller counties. However, it often takes longer for major populations centres to tabulate votes, leading experts to predict that the state won’t have a result until at least Wednesday.
Arizona – Initial results could come as early as22:00 EST (03:00 GMT), however, they won’t paint a complete picture. The state’s largest county says not to expect results until early Wednesday morning. On top of that, postal ballots dropped off on election day could take up to 13 days to count, according to officials in Maricopa County, the largest district in the state.
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Nevada – Votes here could also take days to count, because the state allows mail-in ballots to qualify as long as they were sent on election day and arrive no later than 9 November.