First Minister of Scotland and leader of the SNP Nicola Sturgeon, visits Pocra Quay during campaigning for the Scottish Parliamentary election, in Aberdeen, Scotland, Wednesday, May 5, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. First Minister Nicola Sturgeon has downplayed independence in her campaign, stressing her credentials as a safe pair of hands to lead Scotland’s recovery from the pandemic. (Russell Cheyne/PA via AP)

The Scottish side of the border between Scotland and England at Berwick-Upon-Tweed, Scotland, Tuesday, May 4, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. But many voters, even if they support independence, are cautious. (AP Photo/Renee Graham)

James Cook, Managing Director of D.R Collin & Son who voted for Scottish independence in 2014, but feels now is not the right time for a second independence referendum, speaks to the Associated Press in Eyemouth, Scotland, Tuesday, May 4, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. But many voters, even if they support independence, are cautious. (AP Photo/Renee Graham)

The Scottish side of the border between Scotland and England at Berwick-Upon-Tweed, Scotland, Tuesday, May 4, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. But many voters, even if they support independence, are cautious. (AP Photo/Renee Graham)

Scottish independence supporters attend a rally in Glasgow, Scotland, Saturday, May 1, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. But many voters, even if they support independence, are cautious. (AP Photo/Renee Graham)

Friends Elizabeth Care, left, who voted against Scottish independence in 2014, and Janet Allan, who voted for it, in Glasgow, Scotland, Saturday, May 1, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. But many voters, even if they support independence, are cautious. (AP Photo/Renee Graham)

The English side of the border between Scotland and England at Berwick-Upon-Tweed, England, Tuesday, May 4, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. But many voters, even if they support independence, are cautious. (AP Photo/Renee Graham)

Scottish independence supporters attend a rally in Glasgow, Scotland, Saturday, May 1, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. But many voters, even if they support independence, are cautious. (AP Photo/Renee Graham)

Alba Party leader Alex Salmond during his election campaign trail visit to the Scotsman Lounge in Edinburgh, Scotland, Monday May 3, 2021. Virus lockdown social liberty measures and Scottish independence are among the most divisive questions being debated ahead of upcoming Scottish Parliamentary Election on May 6. (Jane Barlow/PA via AP)

First Minister of Scotland and leader of the SNP Nicola Sturgeon, with party candidates Neil Gray, left, and Anum Qaisar-Javed, right, alongside the party's campaign bus during campaigning for the Scottish Parliamentary election, in Airdrie, Scotland, Tuesday, May 4, 2021. Scotland holds an election Thursday that could hasten the breakup of the United Kingdom. The pro-independence Scottish National Party is leading in the polls and a big victory will give it the the moral right and the political momentum to hold a referendum on whether Scotland should end its three-century union with England. First Minister Nicola Sturgeon has downplayed independence in her campaign, stressing her credentials as a safe pair of hands to lead Scotland’s recovery from the pandemic. (Jane Barlow/PA via AP)