Pride comes before a fall and the hole smashed spectacularly in the once impregnable Tory blue wall shows a careless Boris Johnson is beatable.
Southern discomfort panicking Conservative MPs terrified after the stunning demolition of Chesham and Amersham exposed chronically poor leadership.
Successful Generals protect their flanks and rear but a Prime Minister intent on colonising the North forgot about the South.
Something always had to give when levelling up and representing vested interests of leafy commuter belts are opposing ideological goals.
The political earthquake in Buckinghamshire will force Johnson to rethink and it will be the North that loses out again when he abandons assaults on the red wall to defend blue bastions.
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Taking voters for granted was stupid and the Prime Minister’s vaccine bubble was burst by the Liberal Democrats pulling off one of the greatest byelection shocks of all time.
Reverberations of Ed Davey’s hitherto struggling party turning a 16,000 Tory cushion into an 8,000 Lib majority are shaking Tory MPs.
The Libs are second in 79 Conservative seats with Foreign Secretary Dominic Raab and ex-Health Secretary Jeremy Hunt among big names looking nervously over their shoulders.
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Proposals to relax planning laws could be tightened or dropped after it was a major issue in Chesham and Amersham along with HS2, the fast rail line to be bulldozed through the constituency.
New Lib MP Sarah Green is a Nimby contortionist, her party pledging 300,000 extra homes a year but not in her desirable backyard and supporting HS2 nationally.
Yet it’s Johnson who has the major headache, revolting Tory MPs hammering him for failing to champion publicly comfortable middle class voters.
Keir Starmer’s also sweating after Labour’s vote plummeted to a £500 deposit-losing historic low in a by-election of only 622, a tiny 1.6% share to finish fourth behind the Greens.
Tactical voting’s to blame and to be honest if I lived in that area, I’d have held my nose for the Libs to beat the Cons where Labour had no chance.
But after the Hartlepool defeat, the heat is on to hold Batley and Spen on 1 July or Labour’s leader will endure an uncomfortable summer.
If Lib voters tactically endorse Labour in West Yorkshire as Labour did the Libs in Bucks, it’s game on. They don’t and Starmer’s in trouble.
But this weekend the North-South divide is shaking the Tory blue wall to its foundations.