As Americans vote in the US Presidential elections currently underway in all states, the Trump campaign has revealed in the last hour that it is suing a county registrar in Nevada for keeping polling stations open late on an early voting day.

It accuses Joe P Gloria, the Clark County registrar of voters, of keeping polling locations open "two hours beyond the designated closing time".

In response, county spokesman Dan Kulin told CNN that only voters already in line at closing time had been allowed to stay and vote.

Trump's lawyers are also asking for the early voting ballots to be kept separate from other votes.

Americans are choosing between Hillary Clinton and Donald Trump as voting in the US presidential election goes into full swing.

Americans are choosing a new president after one of the most bitter campaigns the country has seen.

Donald Trump has cast his ballot near his home in New York City, a few hours after his opponent, Hillary Clinton, voted.

Hilary Clinton is the first woman from a major US political party to vote for herself in a presidential election.

Both candidates were met with cheers and boos.

In their final rallies, Democratic contender Clinton urged voters to back a hopeful, inclusive, big‑hearted America while Republican nominee Trump told supporters they had a magnificent chance to beat the corrupt system.

Polls give Clinton a four‑point lead over Trump.

A record number of Americans ‑ more than 46 million ‑ have voted early by post or at polling stations.

There are signs of a high turnout among Hispanic voters, which is believed to favour Clinton.

This report from the CNN where they also speak to a couple married for 37 years who are splitting their vote today.

But it's all down to a system called the electoral college in the US presidential elections.

The electoral college is a group of people who choose the winner ‑ 538 of them. Just half of them ‑ 270 ‑ are needed to make a president.

But not all states are equal ‑ California, for example, has more than 10 times the population of Connecticut, so they don't get an equal say.

Each state has certain number of these "electors" based on their population in the most recent census.

When citizens vote for their preferred candidate, they're actually voting for the electors, some of which are pledged to one candidate, some for another.

In almost every state (except Nebraska and Maine), the winner takes all ‑ so the person who wins the most electors in New York, for example, will get all 29 of New York's electoral votes.

In the race to get to the magic number ‑ 270 ‑ it's the swing states that often matter most.

The winner will be known by this evening. Stay with us for hourly updates.

Source: CNN