It is hard to view Boris Johnson's Brexit outburst as anything other than a hostile act, coming less than a week before Mrs May sets out her own Brexit vision in a speech in Florence.
Unforeseen events have utterly transformed the political weather. First came the Election result. Then came the abiding, endlessly painful tragedy of Grenfell Tower.
MAIL ON SUNDAY COMMENT: The giant aftershocks of the EU referendum continue to run through British politics, shaking pillars that once seemed wholly firm, demolishing safe walls.
We are in alarming, uncharted territory. Every vote counts as almost never before. The Mail on Sunday’s Survation poll now shows the Tory lead down to just one per cent.
Britain’s National Health Service has plainly been carefully targeted by internet highwaymen looking for easy victims. They did not choose the NHS because it was impoverished.
As yesterday’s special European Union summit made clear, this country’s divorce from Brussels is likely to be painful. It is a time when Britain needs a strong, clear-headed and resolute Prime Minister.
For the first time in 47 years, the country that gave the globe Magna Carta, parliamentary democracy, the industrial revolution and human rights, will once again be truly sovereign.
So this is it. We have arrived at the moment when Parliament can finally end this Brexit purgatory. Alternatively, they could continue to put petty politics before the national interest.
Make no mistake, this is a catastrophic defeat. Indeed, in living memory, it is an unparalleled embarrassment for a serving British premier.
DAILY MAIL COMMENT: The inquiry into allegations of a VIP sex abuse ring codenamed Operation Midland ranks as the most disgraceful episode in the recent history of the Metropolitan Police.
Her Withdrawal Agreement Bill is seemingly dead in the water, and as events in Downing Street yesterday so brutally demonstrated, her support and authority have evaporated.
Exactly 1,000 days ago today, the British electorate went to the ballot box for the EU referendum. How long ago it now seems! Today the dream, if not dead, is on life support.
DAILY MAIL COMMENT: As British MPs prepare to vote on Theresa May’s Brexit deal, their choice is simple: provide the certainty the nation yearns for – or lead us into a dark and hazardous unknown.
DAILY MAIL COMMENT: This was far more than just a bad and humiliating day for Theresa May and her deal. It was the day Brexit itself was pushed to the very brink.
Businesses were exultant. Billions of pounds in investment funds, kept on hold while uncertainty prevailed, seemed about to be unleashed. The pound perked up and share prices rose.
Loyalty and respect were not in evidence yesterday, as hard-line Tory Brexiteers turned on UK Prime Minister Theresa May (pictured) in a deeply unedifying display of petulant defiance.
If there’s one thing voters hate, it’s a party wracked by civil war. If it can’t govern itself, why should it be trusted to govern the country? Let’s consider the alternative.
The decision of consumer goods giant Unilever to abandon plans for the relocation of its corporate headquarters from London to Rotterdam is a spectacular victory on every conceivable level.
If Corbyn truly believed in democracy, he’d roundly condemn today’s ‘Day of Rage’, organised by the storm troops of the hard Left to bring London to a halt and help overthrow the Government.
But though the perpetrator of this ghastly crime may have different coloured skin from the others, their motivation was the same – to sow hate and division in our tolerant society.
The similarities between the Grenfell fire and Lakanal House, which caught fire in 2009 (pictured), are frightening - yet it seems lessons were not learned by those who should be protecting us.
Having ruined his own legacy with Project Fear, David Cameron has treacherously suggested that there will be 'pressure for a soft Brexit' following last week's election result. Has he no shame?
What on Earth do Tory Remoaners think they are playing at? Don't they realise that by courting Labour support they could sink their party – and hand the keys of No 10 to Jeremy Corbyn?
Anyone tuning in to the airwaves over the weekend might be forgiven for believing Theresa May lost the election, while Jeremy Corbyn led Labour to a resounding victory.
There is no hiding from the truth. This was a dreadful night for the Conservatives, Brexit and a future for this country that had looked remarkably bright.
Theresa May's radical plans for tackling the crisis was a big mistake, but she was right to identify provision of social care in our ageing society as one of the greatest challenges facing the country.
A.N. WILSON: Peter Phillips' tacky and absurd milk advertisement, reported in yesterday's Daily Mail, has provoked understandable laughter and contempt.
Prince Albert's cruel notes to Queen Victoria shatter their mythic love story - he called her 'my child' and cut her down - saying 'I feel the dreadful waste of most precious time, and of energies' with her.
A.N WILSON: Pays tribute to wine connoisseur Auberon Waugh in time for the republish of the 1980s Waugh On Wine - where Auberon says wine should have 'bizarre side-tastes' including rotting wood.
JANE FRYER: By the time he was 23, Ronan O'Rahilly had fled his native Ireland for London, was running a successful club in Soho, The Scene and set up a record label.
JANE FRYER: Certainly it will be beautiful and awesome and, for those with binoculars and telescopes, there will be an awful lot to see.
JANE FRYER: Every weekend and holiday, Cameron Newham is out from dawn to dusk, in rain, sun, hail and biting winds, fulfilling his quest to photograph England's rural parish churches.
JANE FRYER visited Emily Duncan, 42, and her husband, Henry, who live in Dumfries and Galloway. They own a flock of Valais Blacknose sheep, which have hairy black faces and comically fluffy coats.
With panic-buying leaving empty shelves on supermarket floors, the Daily Mail has gone to the UK's biggest loo roll factory, Essity in Manchester, to see if its ready to meet demand.
JANE FRYER: Bob Weighton, of Alton, Hampshire neither drinks nor smokes. 'I tried one of my brother's cigarettes when I was 12, was sick and I've never smoked since,' he says.
The Rev Chris is the hottest thing in the Church of England right now. Not just in terms of his fame - he has more than 117,000 Instagram followers and is a massive hit on YouTube channels.
JANE FRYER: Over the past six decades his art has embraced everything from German mythology to astronomy; maths to comparative religion; politics to war. And all the while, become bigger.
JANE FRYER: John Richards has impressively bushy eyebrows, two children, a grandchild, an amicably divorced wife, a passion for detective novels and a vast, exacting brain.
During an alarmingly meandering and sweary after-dinner speech for online LGBT newspaper PinkNews earlier this month, Dawn Butler declared that almost all giraffes were gay.
Roald was plagued by the feeling he had let his 'favourite child' down after Olivia contracted measles encephalitis, writes JANE FRYER. The first vaccine was licensed the following year in the U.S.
Retired engineer Richard Keedwell, 71, has spent nearly three years, attended seven court hearings and spent £30,000 of his sons' inheritance disputing a £100 speeding fine.
JANE FRYER: The Stroud climate change march started yesterday with just one man who arrived early and waited patiently under the anti-slavery arch in this staunchly liberal Gloucestershire town.
JANE FRYER lifts the lid on the Three Tenors - Luciano Pavarotti, Jose Carreras and Placido Domingo, the European opera singers adept at transporting their fans to a higher plane.
On Wednesday, Boris was spotted in a Tesco Express in Islington, close to his former marital home. Rucksack on back, crumpled as ever, he was in a hurry and, according to a witness.
Richard Dinan announced that the technology for nuclear fusion would soon be available in his rented warehouse on a business park on the outskirts of Milton Keynes, writes JANE FRYER.
JANE FRYER: Exactly four years ago, a brand new, specially- designed post office opened in the back of the Dandelion gift shop on the gorgeous honey-stoned high street of this Cotswolds town.
JANE FRYER: Allen McCloud, 59, is the businessman behind the swingers club at the Croydon Hall Hotel, in the sleepy village of Rodhuish, population 293, near Minehead in Somerset.
JANE FRYER: This is a story of self-belief, stamina, serendipity, shelves groaning with championship silverware — and two very unlikely heroes.
JANE FRYER: As they stood outside the Old Bailey yesterday, Charlotte Brown's family were a vision of dignity, strength and integrity. Everything indeed that James 'Jack' Shepherd lacks
SEBASTIAN SHAKESPEARE: Fergie, who has just launched her own YouTube channel, 'Storytime With Fergie And Friends', declines to comment on the company's affairs.