Key facts
- The Scottish Conservatives won the Aberdeen South Westminster by-election, defeating the SNP.
- Douglas Lumsden secured the victory for the Conservatives, marking their first Westminster by-election gain in Scotland in over 50 years.
- The campaign in Aberdeen South was significantly influenced by the issue of the North Sea oil and gas industry.
- The SNP retained the Arbroath and Broughty Ferry seat in a separate by-election.
- Douglas Lumsden must resign as an MSP due to Holyrood's ban on holding seats in both the Scottish Parliament and Westminster.
The Scottish Conservatives have achieved a significant Westminster by-election victory in Aberdeen South, ousting the SNP. This win, the first for the Tories in Scotland in over 50 years, was largely driven by a campaign focused on protecting the North Sea oil and gas industry.
Douglas Lumsden, the Conservative candidate, defeated SNP's Richard Thomson by a margin of over 6,000 votes, securing nearly half of the ballots cast. The result represents a substantial shift, with the Conservative vote share doubling and Labour's collapsing significantly.
This by-election was triggered by the resignation of SNP MP Stephen Flynn, who moved to the Scottish Parliament to become economy secretary. Flynn acknowledged the tough night for his party and expressed confidence in regaining the seat in the future.
In a separate by-election, the SNP successfully held the Arbroath and Broughty Ferry seat, with Lara Bird winning for the party. However, the loss in Aberdeen South is a notable setback for the SNP, particularly in John Swinney's first electoral test as party leader.
Lumsden, a former oil and gas worker, stated his constituents sent a clear message against the "destruction of the oil and gas industry." Conservative figures highlighted the importance of the energy sector to Aberdeen's economic success and security.
Due to Holyrood's ban on dual mandates, Lumsden will resign as a Member of the Scottish Parliament (MSP) within 49 days, with his seat to be filled by the next candidate on the Conservative list. The Conservatives last won a Westminster by-election in Scotland in 1973.