In a new BBC documentary, John Swinney revealed his reservations about Nicola Sturgeon's push for a second independence referendum following the Brexit vote, expressing concerns about the SNP's ability to motivate the public so soon after the 2014 referendum. He admitted feeling 'nervous' about Sturgeon's strategy, which she had framed as a response to the UK's departure from the EU, arguing it might not align with the public mood. The documentary, titled 'Salmond and Sturgeon: A Troubled Union', explores the evolving dynamics within the SNP and the eventual fallout between Sturgeon and former leader Alex Salmond. Sturgeon acknowledged that the referendum pledge was 'out of step with the public mood', particularly after the SNP lost 21 seats in the 2017 election. Swinney now leads the SNP and suggests the party must reevaluate its approach to the independence campaign following further electoral setbacks. The film sheds light on significant moments in the party's history and the complex relationship between its key figures.