With the DUP providing the Conservatives a narrow, but crucial, majority in Parliament, it could have an outsized influence. As May struggled to contain the fallout, her two closest aides resigned. But Johnson said he backed May. Turnout among 18-to-24-year-olds was 66.4 per cent, about 50 per cent higher than it had been in the 2015 election. But now, after losing her majority, the Conservative Party's embarrassing showing has catapulted British politics into the unknown.
The change was unlikely to significantly quell unrest within the party. He said it was impossible to predict whether she would still be prime minister at the end of the year.
She and just about everyone else also underestimated how skilled a campaigner Corbyn would be.
But the DUP added: "Discussions will continue next week to work on the details and to reach agreement on arrangements for the new Parliament".
"The arguments the Conservative Party put forward in this election have lost, and we need to change".
Still the deal with the DUP risks upsetting the political balance in Northern Ireland. Another potential problem is the planned restart of negotiations for power-sharing in the province.
There was no mention of what concessions the DUP may have asked for, amid growing concern about the influence of a party opposed to abortion and gay marriage, and which has proved hugely controversial in the past over the homophobic and sectarian views of some of its representatives.
With Brexit talks due to start in just 10 days' time, Brussels appeared to be braced for them to be pushed back.
Throughout the campaign, May maintained that only she would be able to get the best deal for the British public during Brexit negotiations. A hung parliament, the country's worst nightmare, is the dubious outcome. Except that she had not been honest about a snap election until the very last possible moment.
The left-winger's energetic election campaign based on a popular manifesto delivered a result that will stave off threats to his leadership from critics within his own party. New French President Emmanuel Macron looks poised to build on his win with a parliamentary majority that may make it easier to pass business-friendly reforms. Corbyn accused the Conservatives of undermining Britain's security by cutting the number of police on the streets.
Jeremy Corbyn was a perpetual thorn in the side of Tony Blair's Labour government, constantly leading revolts against his own party's attempts to curb civil liberties. "If Labour was united behind Corbyn this past year he coulda won this outright!" Allen said she couldn't see May hanging on for "more than six months".
"She might start off doing that but the Conservatives might well replace her mid-stream", he said.
He made good on his promise on Saturday (Sunday morning NZ time), tearing pages out of his book and eating them on live TV.
"The Conservatives have not yet broken the British system of democracy, but through their hubris and incompetence they have managed to make a mockery of it", it said in an editorial. Prime Minister May even refused to rule out Chinese-style censorship of the internet in Britain.
A stony-faced May, speaking on the doorstep of her official Downing Street residence, said the government would provide certainty and lead Britain in talks with the European Union to secure a successful Brexit deal.
Labour had 262, up from 229, and the Scottish National Party 35, a loss of about 20 seats that complicates the party's plans to push for independence.
"I don't think she does have a majority in the House of Commons for leaving the single market", she told Sky News.
The deal has also caused disquiet in Dublin, prompting Irish premier Enda Kenny to warn such an alliance could upset Northern Ireland's fragile peace.