US election swing states: The key swing states to watch on election night

The outcome of the entire US election has come down to six undecided states. These are the ones you should be watching.

There are 50 states in America, but when the votes are counted in the country’s presidential election, just a handful of them will decide who wins.

You’ll hear them be referred to as the “swing states” or “battleground states”. These are the states that could conceivably be won by either Donald Trump or Joe Biden.

In this election, 15 states fall into that category.

The rest? We already know who will win them.

Mr Trump stands no chance whatsoever in Democratic Party strongholds like New York and California, for example, while he is unbeatable in heavily Republican territory, like Alabama or Oklahoma.

The ultimate goal is to reach a threshold of 270 electoral votes. Winning the popular vote in any given state will earn a candidate its entire haul of electoral votes, and move them that much closer to victory.

Below we have listed the states that are genuinely up for grabs, in alphabetical order. They represent a total of 221 electoral votes.

These are the ones you should watch closely.

RELATED: How America’s electoral system works

The states we still have left.

VIRGINIA: BIDEN VICTORY (13 electoral votes)

Joe Biden has claimed the first of the battleground states – declared victorious in Virginia.

This means Mr Trump has lost the state for a second time – beaten by Democratic candidate Hillary Clinton by five per cent in 2016. There were no signs of a swing towards the President in Virginia this election.

Virginia is a diverse state, with an interesting mix of demographics. It includes the heavily Democratic outer suburbs of Washington D.C., a large number of Republican-leaning military personnel, and some more rural areas as well.

It has been a bit of a streaky state in presidential elections. Virginia went Republican 10 times in a row between 1968 and 2004, before turning into a comfortable win for the Democrats in the last three contests.

FLORIDA: TRUMP VICTORY (29 electoral votes)

Florida’s possibly the most important state to watch - and Trump has just claimed it.

The state is always unpredictable, and always close. The most famous example came in 2000, when George W. Bush was controversially declared the winner over Al Gore by 537 votes (Mr Bush won 48.85 per cent, compared to Mr Gore’s 48.84 per cent).

Mr Trump also won it four years ago - by 1.19 per cent four years ago - and Barack Obama by 0.88 per cent in 2012. Even in the landslide 2008 election the margin in Florida was less than 3 per cent. Blowouts simply do not seem to happen there.

It also happens to be one of the biggest prizes up for grabs, in terms of its electoral vote haul. Had the President lost Florida - the election would be all but lost. It’s not over for Mr Biden though - who still has a few other paths to victory.

COLORADO: BIDEN VICTORY (9 electoral votes)

Mr Biden has claimed his second swing state victory with Colarado.

In the last six presidential elections, Colorado has been evenly split, going Democratic and Republican three times each.

The problem for Mr Trump was that those three Republican victories came in 1996, 2000 and 2004. The Democrats have now won it four times in a row.

Ms Clinton beat Mr Trump by 5 per cent in Colorado four years ago, and the very limited polling we’ve seen this time around showed him even further behind.

Florida is particularly important for Donald Trump’s chances. Picture: Saul Loeb/AFP

NEW HAMPSHIRE: BIDEN VICTORY (4 electoral votes)

New Hampshire has fallen to Mr Biden - his third of the 15 battleground states.

A small and somewhat quirky state, New Hampshire was hotly contested in the early 2000s. Mr Bush won it in 2000, but lost it to John Kerry in 2004.

Since then, New Hampshire has gradually come to be seen as a swing state that leans a teensy bit Democratic. Mr Obama never had much trouble winning it.

Ms Clinton, on the other hand, won it by just 3000 votes in 2016, or 0.37 per cent.

Mr Biden’s lead there was consistently in the double digits.

TEXAS: TRUMP VICTORY (38 electoral votes)

Winning deep-red Texas has long been a bit of a pipe dream for the Democrats, and this time is no different.

While Mr Biden pulled virtually even with Mr Trump in Texas throughout July and August, which has voted Republican in each the last 10 elections, his progress there has faded since.

Mr Trump won the state comfortably four years ago - avoiding the monumental upset that likely would’ve occurred had he lost.

OHIO: TRUMP VICTORY (18 electoral votes)

Mr Trump has “cleared a major electoral hurdle in his quest for a second term”, and taken out the state of Ohio.

With its chunky haul of 18 electoral votes, the state was widely seen as Mr Trump’s strongest swing state. And that’s very good news for him, given it is also the nation’s most reliable bellwether.

It has voted with the winning candidate in 14 straight elections, going all the way back to Lyndon Johnson in 1964.

Four years ago, Mr Trump beat Ms Clinton by 8 per cent in Ohio, and the polls showed him leading Mr Biden there as well – albeit by a much, much thinner margin.

Mr Trump has been trading barbs with Michigan Governor Gretchen Whitmer. Picture: Chip Somodevilla/Getty Images/AFP

MINNESOTA: BIDEN VICTORY (10 electoral votes)

Minnesota has been called for Mr Biden.

Ms Clinton only won Minnesota by about 2 per cent four years ago, and the polls show Mr Biden up by mid-single digits there, so it certainly qualifies as a battleground state.

That said, like Georgia, its history suggests it is unlikely to deliver an upset.

Minnesota has voted Democratic in the last 11 elections. It was, in fact, the only state in the country to vote for Walter Mondale over Ronald Reagan in the 1984 landslide.

IOWA: TRUMP VICTORY (6 electoral votes)

Iowa - which you might recognise as the site of the first contest in each major party’s primary process - has gone to Mr Trump.

Because of its unique position, it has a heck of a lot of influence when it comes to choosing the presidential nominees.

Its influence in the general election is smaller, due to its relatively small number of electoral votes, but in an extremely tight contest Iowa could be decisive.

The state has voted for the victorious candidate in each of the last four elections, going Republican and Democratic twice each. The polls this time suggested it would be a toss-up.

WISCONSIN: BIDEN VICTORY (10 electoral votes)

Finally, we come to the last of the Rust Belt states that made Mr Trump President in 2016.

He was the first Republican since Mr Reagan to win Wisconsin, albeit by just 0.77 per cent.

This is another state where Mr Biden has consistently led by a margin in the mid-single digits, so it certainly remains up for grabs.

ARIZONA (11 electoral votes)

Since 1952, Bill Clinton was the only Democratic candidate to win Arizona – and Donald Trump won it by a moderately comfortable margin of 4 per cent in 2016.

That doesn’t sound like the voting pattern of a swing state, and yet, Arizona was very much in play this time. Mr Trump has never led Mr Biden in the state’s polling average.

Of significance, perhaps, is the fact that Arizona was the home state of the late Republican senator John McCain, an American war hero who died in 2018.

Mr Trump feuded with Mr McCain, who was one of the President’s few vocal critics within his own party, and that might hurt him with Arizonans.

The state has also undergone a pretty clear political shift to the left since 2016, with Democrats winning a few marquee statewide elections.

MICHIGAN (16 electoral votes)

Michigan was one of three “Rust Belt” states that delivered Mr Trump his surprise election win four years ago, thanks largely to his support among white working class voters.

Ms Clinton barely campaigned there, believing it to be a fairly safe Democratic state. It had gone blue in each of the previous six elections, and Mr Obama had beaten Mitt Romney by 10 per cent in 2012.

Mr Trump’s margin of victory was a razor-thin 0.22 per cent, representing just 11,000 votes.

He has spent recent months feuding with Michigan’s Democratic Governor Gretchen Whitmer over her handling of the pandemic.

The polls here show Mr Biden leading by a large margin.

NEVADA (6 electoral votes)

This is another state Ms Clinton managed to win narrowly four years ago, despite her broader defeat in the election.

Before that, Nevada had gone with the victorious candidate in every election since 1980, earning it a reputation as a reliable bellwether. Those of you who watched The West Wing will remember the crucial role it played in one of the show’s fictional elections.

Mr Trump has made a few campaign trips to Nevada, so he clearly feels it is in play, and he has been particularly vocal about mail-in voting there, implying (without evidence to back him up) that it will lead to massive fraud.

There hasn’t been a heck of a lot of polling, but as far as we can tell, Mr Biden holds a modest lead in the state.

We think Joe Biden is the favourite in Nevada, but data is sparse. Picture: Angela Weiss/AFP

GEORGIA (16 electoral votes)

The very tight polling in Georgia, which has shown Mr Biden ahead at times, might prove to be a mirage for the Democrats.

The Republican candidate has won this state in eight of the last nine elections, the sole exception being Bill Clinton all the way back in 1992. Mr Trump beat Ms Clinton by 5 per cent four years ago.

Georgia is certainly polling like a swing state, but its recent history is more red than purple.

NORTH CAROLINA (15 electoral votes)

The more competitive of the two Carolinas is usually close, but almost always ends up voting Republican. The sole exception since 1980 came in Mr Obama’s 2008 landslide, but even then, he only claimed the state by a fraction of 1 per cent.

North Carolina was one of only two states Mr Romney promptly won back for the Republicans four years later.

Mr Trump won it by 3 per cent, and the polls suggest it will be close again, with Mr Biden holding a very precarious lead.

PENNSYLVANIA (20 electoral votes)

In 2016, Mr Trump broke the Democrats’ six-election winning streak in Pennsylvania, blowing up the idea that it had shifted from purple to solidly blue. It was pretty close though, with a margin of just 0.71 per cent.

The President has been hammering Mr Biden on fracking, which is a big issue in the state, accusing him of wanting to ban it. And a blunder from the Democrat in their final presidential debate, when he said he would “transition away” from the oil industry by 2025, could hurt him in Pennsylvania as well.

That said, Mr Trump has never come close to leading in the polling average there.