Nominations for a leader to succeed First Minister Nicola Sturgeon as head of Scotland's ruling party close on Friday amid an uproar over a top contender's conservative views on gay marriage.
Three candidates are vying for the position following the shock resignation of Sturgeon, the long-serving Scottish National Party (SNP) chief.
Finance Secretary Kate Forbes, a 32-year-old rising star, caused controversy by saying she would have voted against same-sex marriage had she been a member of the Scottish Parliament when the reform passed in 2014.
While Forbes has defended her stance on the issues as a matter of personal conscience, it puts her strongly out of line with the SNP's centre-left base, and four high-profile supporters immediately withdrew their backing.
Despite mounting backlash on social media, Forbes insisted her campaign was "absolutely not over" so soon after it began.
"We have a large party membership, most of whom are not on Twitter," she told BBC radio.
"My position on these matters is that I will defend to the hilt everybody's rights in a pluralistic and tolerant society, to live and to love free of harassment and fear."
Forbes, who has been on maternity leave after having a baby in August, also explained her religious disapproval of pre-marital sex.
"In terms of my faith, my faith would say that sex is for marriage and that's the approach that I would practise," she told Sky News.
Despite the furore, a Big Partnership poll of 1,001 Scots who voted SNP in 2021, released on Friday, put Forbes slightly ahead of her competitors at 28 per cent, although 31 per cent said they were still undecided.
The controversy around Forbes came as a boost to the rival leadership campaign of Health and Social Care Secretary Humza Yousaf, 37.
Yousaf, who is Muslim and backed by allies of Sturgeon, told the BBC that he would "always fight for the equal rights of others" and would not legislate based on his own faith.
Surprise resignation
A third candidate, former minister Ash Regan, has stated her opposition to a controversial measure pushed through by Sturgeon allowing people to change gender without a medical diagnosis, from the age of 16.
All three candidates have vowed to reinvigorate Sturgeon's spluttering push to win independence for Scotland, after the UK government blocked her plans to hold a fresh referendum on the issue.
Forbes has polled well in Scotland since taking over the finance role and presenting a budget at the last minute in 2020 when her predecessor quit after sending an inappropriate message to a 16-year-old boy.
Yousaf has his own political problems from mounting issues in Scottish healthcare under his watch, and from contentious hate crimes legislation, he pushed in a previous portfolio.
The leadership race was ignited after Sturgeon last week announced her surprise resignation, after more than eight years as Scotland's first minister and SNP chief.
It is the SNP's first full leadership battle since 2004, as Sturgeon was elected unopposed in 2014. Nominations close on Friday at noon with the ballot opening at noon on 13 March 2023.
The new leader is set to be announced on March 27.