A party must control 326 to have a majority. From whom? From her party?
Former chancellor George Osborne said Mrs May's days in Downing Street were clearly numbered.
And eventually Harold Wilson managed to form a government.
With no clear victor emerging from Thursday's election, a wounded May has signalled she would fight on. "Theresa May has lost credibility and leverage in her party, her country and across Europe".
She said the two parties had enjoyed "a strong relationship" over many years.
In one sense the British people have dealt themselves a hard hand politically, for they now have to live with the prospect of continuing uncertainty on the direction that their country will take with regard to Brexit and also other domestic concerns.
"They have once again betrayed the interests of the people of the north by supporting a Tory party which has cut funding to our public services year on year to the tune of hundreds of millions of pounds". But not for some time, let's get this clear.
May's office announced on Saturday that the DUP had agreed to support her government on the basis of a "confidence and supply" arrangement in parliament, a development that is due to be discussed in her cabinet on Monday.
"It would be nothing short of scandalous if the Tory party jeopardised the return of government in Northern Ireland and the Good Friday process in order to cling on to power at Westminster". A formal agreement is yet to be reached.
Sinn Féin's leader at Stormont, Michelle O'Neill, predicted the deal between the Tories and the DUP would "end in tears".
May's Conservatives lost their parliamentary majority in Thursday's vote and need the support of the 10 MPs from Northern Ireland's DUP to have a majority.
"We are going to see, I hope, more collective decision-making in the cabinet".
"Our shared responsibility and urgent task now is to conduct the negotiations on the UK's withdrawal from the European Union in the best possible spirit, securing the least disruptive outcome for our citizens, businesses and countries after March 2019", he said.
Theresa May's bid to do a deal with the Democratic Unionist Party to save her premiership has been plunged into uncertainty.
She put on a courageous face, refusing to show any contrition for the election gamble that spectacularly backfired, but observers say she has been deeply wounded.
"If she has an ounce of self respect, she will resign".
He told the programme: "My advice to the prime minister would be to wait until her backbenchers get into Parliament next week and she tests opinion because, I can tell you I'm there every week, these people will not want to be held to ransom by any regional party whichever one it happens to be".
The Tories remain the biggest party with 318 seats so far and Labour now have 261 - with 326 required for a majority and just one seat left to be called.
The Leader of Britain's opposition Labour Party, Jeremy Corbyn listens to a speech on the first day of the Labour Party conference, in Liverpool, Britain, September 25, 2016.
Sky's political editor Faisal Islam said: "This is the most extraordinary balancing act". To make matters worse, she saw her majority evaporate.
The exact contours of a potential Conservative-DUP deal were not yet known.
Fallon told the BBC the government would be able to muster parliamentary support for its Brexit plans, adding: "Our view of Brexit I don't think has changed".
While the DUP campaigned to leave the European Union in last year's referendum, it has refused to endorse Mrs May's position that "no deal is better than a bad deal" - insisting that there must be no return of the "hard border" with the Republic.
London Bridge attacker tried to rent larger truck
Police are also appealing for information about the "distinctive" pink "Ernesto" brand knives the men were carrying. Armed police shot dead the three attackers just eight minutes after the first phone call from the public.
UAE citizens showing sympathy toward Qatar to receive jail time
It follows a previous listing of scores of organisations in 2014 by Saudi Arabia and the UAE during a previous spat with Qatar. It said hackers installed a file and then published a fake news item attributed to Sheikh Tamim just after midnight May 24.