Voting is now underway in Northern Ireland's elections.
There are 90 seats to fill and polls suggest Sinn Féin could come out as the largest party for the first time in its history.
If polls are to be believed, the party has less support than it did the last time voters took to the polls; however, it is in line to become the largest party due to a fall in support for the DUP.
Should Sinn Féin come out with the largest support, it will be entitled to take the role of First Minister.
Meanwhile, the largest unionist party would be entitled to the role of Deputy First Minister.
However, both of those parties would have to agree to work together and there are serious question marks over whether the DUP would agree to do so.
The party’s leader Jeffrey Donaldson has already said the prospect of Sinn Féin being the region’s largest party is a ‘problem’ and warned that the DUP will not enter power-sharing unless the Northern Ireland protocol is ditched.
The Alliance Party, which polls suggest has the same support as the DUP, has said it would be obscene for MLAs to continue to take their salaries if the Executive was not back up and running.
Sinn Féin Deputy Leader Michelle O’Neill said a failure to return to power-sharing directly after an election would be "unfathomable".
University of Liverpool Professor of Politics Jon Tonge said the poll could mark a seismic day for Northern Ireland.
"Sinn Féin could be on the cusp today of becoming the largest party in a country that ultimately, they don’t want to exist," he said.
"The DUP, we’re waiting to see whether they will back into Government, so there are question marks over the whole future of devolved power-sharing.
"And there might be a breakthrough for the centre-ground within Northern Ireland if Alliance does well - so there is an awful lot at stake today."
He said we should "pretty much know the general picture" by late afternoon.
"We will have the first preference votes in. We will be able to see how much Sinn Féin and the DUP are up or down and we will probably be able to call who is going to be the first minister," he said.
"A lot of seats are very, very marginal in each constituency though so we might not know the full picture until Saturday."
Polls will remain open until 10 pm tonight.
