ONE can learn an excessive amount of into the Liberal Democrats’ storming efficiency at yesterday’s by-election in Witney, the well-heeled Oxfordshire seat vacated by David Cameron’s resignation from the Home of Commons. In interviews this morning a visibly ecstatic Tim Farron hailed the outcome—an increase in his get together’s vote-share from 6.7% to 30.2%—as proof that his lot are “again within the political huge time”. “We’re the comeback youngsters!” he gushed.

Regular on, now. The Conservative vote was all the time going to fall: Mr Cameron had constructed up an enormous private vote and the flightier components of it have been unlikely to modify to Labour beneath Jeremy Corbyn, to a at present leaderless and shambolic UKIP or the still-marginal Inexperienced Social gathering, even one fronted domestically by Larry Sanders, brother of Bernie. That left the Lib Dems, who had lavished the seat with consideration in a style inconceivable for such a small get together in a basic election: the one different by-election held yesterday was in Batley and Spen in Yorkshire, whose Labour MP, Jo Cox, was murdered in June, and the place all of the rival mainstream events declined to face candidates as a mark of respect (Labour duly received the seat with a landslide). So for weeks your entire Lib Dem machine might focus its attentions on Witney, the place fortunate voters obtained 5 visits from Mr Farron alone. Tellingly, in nationwide polls the get together’s score lingers stubbornly across the 7% to which it fell early within the final Parliament.

Nonetheless, the get together is true to take some solace from the outcome. Firstly as a result of the 19-point swing in its favour is the primary strong signal that the get together’s lengthy stoop, throughout and after its unpopular participation within the final coalition authorities, is bottoming out and maybe easing off. A “comeback” in itself it isn’t, however it would possibly herald the tentative beginnings of 1.

Secondly—and extra considerably—the outcome represents the primary fruits of the get together’s new technique. When Labour was in Downing Avenue, the Lib Dems discovered a job as a pacifist, civil libertarian and barely extra left-wing various to the federal government. Underneath Nick Clegg, in energy with the Tories, they usually appeared like a split-the-difference get together; providing merely to curb the excesses of the Conservatives to their proper and Labour to their left (as he acknowledges in his latest memoirs). However the election of Mr Corbyn as Labour chief, the Brexit vote and Theresa Might’s statist, generally authoritarian tone in her first months as prime minister have delivered the Lib Dems a three-fold alternative to sharpen their liberal, centrist id.

The considering behind that is set out in a paper revealed final yr by Mark Pack and David Howarth, two get together strategists. They argue that the Lib Dems did so badly in final yr’s basic election, tumbling to eight parliamentary seats, partly as a result of they lack an irreducible core of voters who determine with the get together, whose allegiance is such that it may be mobilised even in powerful electoral occasions. Labour, they level out, has the stays of the commercial working class to fall again on; the Tories have their very own deep institutional community: church buildings, golf golf equipment and the like. The Lib Dems didn’t, so plunged via their earlier electoral ground and saved on falling.

The duty earlier than the get together, argue the 2, is to construct that kind of base: a core of maybe 20% of voters—socially liberal, internationalist, pro-European, tech-savvy and well-educated—who determine with the get together’s pro-openness reformism. Accordingly the Lib Dems ought to focus their analysis, campaigning and recruitment efforts extra rigorously than up to now and specifically get your hands on points that enchantment to and curiosity this group of voters (nonetheless little they rouse different components of the citizens). Underneath Britain’s first-past-the-post electoral system, this strategy offers alternatives for the Lib Dems, of their lowered state, to pay attention sources on sure metropolitan constituencies the place they may conceivably come first: affluent enclaves of southern England, college cities and the extra comfy corners of the massive cities. Mr Farron’s speech at his get together’s foremost annual gathering final month, pledging to face up for Britain’s position in Europe, was a kind of love letter to those locations.

Therefore the relevance of Witney, a rolling, well-to-do archipelago of good villages and hi-tech enterprise parks simply outdoors Oxford; a spot the place most individuals voted to Stay within the EU on June twenty third. Whereas the Lib Dems have been doing nicely in council by-elections in such locations in latest months, this was the primary parliamentary take a look at. Their marketing campaign targeted closely on Brexit. Residents have been urged to reject Mrs Might’s nativist overtures at her get together’s convention and to ship the federal government a message about the necessity to maintain Britain within the single market and keep away from a “onerous” break with the European membership. And whereas these messages didn’t propel Liz Leffman (pictured above, proper), the native candidate, throughout the profitable line yesterday, she obtained a larger-than-expected vote share (the Tories had warned it might attain 30%, which discounting the same old expectations administration urged they anticipated one thing nearer 20%). The same swing in a basic election would see the Lib Dems take 26 seats from the Conservatives.

So deal with Witney as a proof-of-concept. A extra starkly liberal character, deftly conveyed via related points and significantly the continuing battles over Brexit, gives the Lib Dems a method—albeit a protracted and treacherous one—out of the political wilderness. One by-election doesn’t a pattern make and an early basic election subsequent yr (publicly dismissed by Mrs Might however not absolutely not inconceivable, given her huge ballot leads over Labour) could come a lot too quickly for a widespread revival. However they’ve made a begin.