How can candidates contest the results? And why do some votes count more than others?
Here are some of your key questions around the US election answered.
Yes. Both campaigns have said they’re already preparing for legal disputes following the election.
They have a right to demand a recount in most states,
There’s been a surge in postal voting this year, and it’s also possible that the validity of these ballots could be challenged in court.
These lawsuits could make their way up to the US Supreme Court – the ultimate legal authority in the US.
This happened in 2000, when the Supreme Court stopped a recount in Florida and ruled in favour of Republican George W Bush who became president.
There are 538 electoral votes up for grabs, with a fixed number of electors representing each state based roughly on the size of its population.
This means a draw is possible at 269 votes each, although very unlikely.
If no candidate gains a majority of votes in the electoral college, it would be over to the US Congress to decide.
It would be the members of Congress elected in the 2020 elections who would take on this responsibility.
The House of Representatives would vote to decide the president, with each state delegation having one vote – a majority of 26 is needed for a candidate to become president.
The Senate would choose the vice-president, with all 100 senators having a vote.
US presidents are not decided by the national popular vote, but by winning in enough states.
The winner in each state gets the support of a number of electors based roughly on its population.
These electors meet a few weeks after polling day – forming the electoral college – to vote to officially nominate the next president.
To win the White House, 270 electoral votes are needed.
Candidates tend to campaign in states where the result is uncertain – that’s why people say the votes in these states “count more”.
These places are known as battleground or swing states.
The US electoral system means that in all but two states, the margin of victory doesn’t matter, as whoever gets the most votes wins all the electoral votes on offer in that state.
In states which are almost guaranteed to vote a certain way – like California for the Democrat or Alabama for the Republican – candidates have less incentive to campaign there.
They’ll put most effort into a handful of tight races, such as in Florida and Pennsylvania, targeting voters that could go either way.
Maine and Nebraska are the only two states that divide up their electoral votes.
In every other state, it’s winner takes all – whether the margin is one or one million votes.
Maine and Nebraska instead divvy up their electoral votes – four and five respectively – based on the share of the popular vote each candidate receives.
These states allocate two electoral votes to the state-wide winner, and then one vote to the winner in each congressional district (two in Maine, and three in Nebraska).
There’s no legal requirement to announce a winner on election night – this is done as a projection by major US media outlets.
The full count is never completed on the night – but enough votes are usually in to confirm a winner.
These are unofficial results which are certified only weeks later, when confirmed by state officials.
This year, the US media will likely be more cautious in calling a winner, as there are more postal votes and these take longer to count.
This could mean the leader on election night in some states could end up losing once all the votes – including postal ballots – are counted.
The electoral college – whose job it is to formally nominate the next president – meets on 14 December this year.
Electors are put forward by each state for their winning candidate.
If the election results are still disputed in certain states and they can’t decide which candidate to give their electors to, then it would be up to the US Congress to step in.
The US Constitution imposes a final deadline – the term of the president (and vice-president) expires on 20 January at noon.
If Congress has been unable to choose the winner by then, there’s a line of succession set out in law.
First in line is the Speaker of the House of Representatives, currently Nancy Pelosi, followed by the second highest ranking member of the Senate, currently Charles Grassley.
This has never happened before so it’s unclear how, under these exceptional circumstances, this would work in practise.
Use the form below to send us your questions and we could be in touch.
In some cases your question will be published, displaying your name, age and location as you provide it, unless you state otherwise. Your contact details will never be published. Please ensure you have read the terms and conditions.
If you are reading this page on the BBC News app, you will need to visit the mobile version of the BBC website to submit your question on this topic.
Is VR dead? No, it’s not, as far as Sony is concerned. Hideaki Nishino, SVP… Read More
What’s in a name? A lot, as Meenakshi and Sundareshwar would express in their upcoming… Read More
There concept of 'Big Three' doesn't exist for new ICC chairman Greg Barclay,… Read More
The stage is set for a high-stakes Triple Threat Match this Monday on Raw. After… Read More
Hong Kong leader warns city is on brink of new wave Source link Read More
Tom Holland is almost unrecognizable as Nico in some scenes from the upcoming post-war movie… Read More