"I obviously wanted a different result last night", a grim-faced May acknowledged, promising she would "reflect on what happened". The Conservatives are forecast to win 314 seats, followed by Labour with 266 seats.
The final result was announced nearly 24 hours after polls closed.
Labour voters were more likely to be concerned about the NHS and spending cuts - only eight per cent said Brexit was the most important factor in their vote. Downing St. says the Cabinet will discuss the agreement Monday. Beleaguered May is appointing new members of her government after several. "The task of restoring orderly government in order to make sense of Brexit is now a national emergency, and it falls to them".
Cutting a deal with the DUP, which won 10 seats, may not be straightforward.
The arrangement with the DUP will make governing easier, but it makes some Conservatives uneasy.
May is under pressure after the Conservatives lost their parliamentary majority in Thursday's election. Theresa May did not have to call this election.
May's predecessor David Cameron sought to silence euroskeptic fellow Conservatives by calling the referendum on European Union membership. When voters stunned him and Europe by voting to leave, he resigned, leaving May to deal with the mess.
"The prime minister has tonight spoken with the DUP to discuss finalising a confidence and supply deal when Parliament returns next week", a Downing Street spokeswoman said.
Tim Bale, professor of politics at Queen Mary University of London, said it's not even clear whether May will now lead those negotiations.
Former Conservative cabinet minister Owen Paterson, asked about her future, said: "Let's see how it pans out".
So who are they?
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In the Conservative Party, recriminations were immediate and stinging.
The Times of London said in an editorial that "the election appears to have been, among other things, a rejection of the vague but harshly worded prospectus for Brexit for which Mrs".
British Tory Prime Minister Theresa May's gamble has delivered her Labour rival Jeremy Corbyn's finest hour.
"Honestly, it feels nearly like she is nearly not aware of what has happened in the last 24 hours", Conservative lawmaker Heidi Allen told LBC radio.
Simon French, chief economist at the investment bank and corporate broker Panmure Gordon, believes a "softer" Brexit will be in the works, given the election outcome.
Jean-Claude Juncker, President of the European Commission, said he was also ready to start talks and hoped the United Kingdom general election would not have an impact. "We are ready to serve this country", Corbyn said, but his party does not have enough potential partners to form a viable minority government.
May had unexpectedly called the snap election seven weeks ago, even though no vote was due until 2020.
They'll be hoping to influence the government's plans for Northern Ireland, and to get a better deal for people there.
With the complex talks on the divorce from the European Union due to start in 10 days, it was unclear what their direction would now be and if the so-called "Hard Brexit" taking Britain out of a single market could still be pursued.
Page said Corbyn, a lifelong left-wing activist who has spent decades speaking to crowds, was underestimated as a campaigner. The UKIP, however, with a 2% vote share (down from 13% in 2015), finds itself collapsing into a black hole.
"I don't think Theresa May and this government have any credibility", Corbyn said, predicting that there could be another election within months.
"I'm afraid we ran a pretty terrible campaign", Soubry said.