The result saw them once again become the third-largest group in the Commons.
With that comes visibility and money. They now get two questions every week at Prime Minister’s Questions and have access to Short money, the public funds given to opposition parties.
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It’s hard to separate their success from the leadership of Sir Ed Davey. Having clearly learned at the knee of former Scottish Lib Dem boss Willie Rennie, he jumped headfirst, sometimes literally, into all manner of election stunts.
From paddleboarding in Lake Windermere, and launching his manifesto on a rollercoaster at Thorpe Park, to bungee jumping from a crane in Eastbourne.
Why? Ostensibly, it was to show voters how much fun it was to do something they’d never done before, like back the Lib Dems.
Though often it looked like he was just having a grand day out.
Sir Ed had a good campaign. His very personal Party Political Broadcast where he talked about caring for his mum and his son, was genuinely moving and quite exceptional.
The party will now be eyeing up the 2026 Scottish Parliament election hopeful of more gains.
With polls suggesting a messy outcome, they could even end up as kingmakers.
When The Herald asked Alex Cole-Hamilton if he would consider a coalition with Anas Sarwar and Scottish Labour, he did not say no.
“We’ll look at the numbers and we’ll do what’s right and I don’t leap out of bed every morning thinking how do I become a cabinet minister? But I don’t fear the idea of it either.”
When looking at their year in Holyrood, it’s hard to see past Liam McArthur’s push to bring in assisted dying.
Though to be clear, it is very much his bill, rather than the Lib Dems.
The proposed legislation has already had a preliminary consultation and is currently making its way through pre-legislative scrutiny in Holyrood.
The stage one vote is expected in Spring next year and it is likely to pass that first hurdle. It will be a significant moment in the history of the Scottish Parliament.
In the meantime, all eyes will be on the party when MSPs come to vote on John Swinney’s budget.
With Labour, the Tories and the Greens all unlikely to back the SNP’s tax and spending plans, the First Minister might need the support of at least some of the four Lib Dems MSPs.
If the groups vote against the budget, they could ultimately trigger an emergency election.
That would be a jump into the unknown.