Immediately after the pair announced their resignations, the BBC reported that senior members of May's party told her that if Timothy and Hill didn't leave, they would instigate a leadership challenge early next week.
I see that Mrs May's special advisers, Fiona Hill and Nick Timothy, have just been persuaded to resign in the wake of the unexpectedly disastrous result for the Conservatives at the General Election.
In his post confirming his departure, Timothy wrote: "Yesterday, I resigned as the prime minister's adviser".
A party spokesman confirmed the resignation of Hill, a combative character who one ex-colleague said had helped create a "toxic" atmosphere at the heart of government.
Although he admitted that the general election was a "huge disappointment", Mr Timothy tried to put a positive spin on the result, saying: "The Conservatives won more than 13.6 million votes, which is an historically high number, and more than Tony Blair won in all three of his election victories".
"We were not talking to the people who made a decision to vote for Labour", he said. I take responsibility for my part in this election campaign, which was the oversight of our policy programme...
Amid reports senior Tories were sounding out potential replacements for Mrs May, prominent Conservative MP Heidi Allen said the Prime Minister had six months at most left in Downing Street.
Conservatives lost their majority representation in the British House of Commons. She called the early election with her party comfortably ahead in the polls in the hope of increasing her majority and strengthening Britain's hand in exit talks with the European Union.
Qatari blacklist not an 'escalation' of crisis, UAE official says
He had earlier claimed credit for the pressure placed on Qatar saying his recent visit to Saudi Arabia was "already paying off". It comes after Riyadh and Abu Dhabi accused Qatar of supporting extremist groups - an allegation Qatar vehemently denies.
May announced the party would try to work with Northern Ireland's Democratic Unionist Party, an alliance that is fraught with difficulties.
"This one clearly had the Prime Minister rattled".
"I sought, and to be fair to the prime minister, received a categoric assurance that in talking to the DUP that there would be no suggestion of any rollback on LGBTI rights in the rest of the United Kingdom", she told the BBC. Everybody wants it to be but she [Theresa May] is very stubborn'.
Katie Perrior, May's former director of communications, described an atmosphere of toxicity and intimidation by Timothy and Hill.
But the strength of that deal looks set to be tested when the Commons meets next week, with Jeremy Corbyn vowing to try to bring down the Government by defeating Mrs May in Parliament and insisting: "I can still be prime minister".
It will be interesting listening to her trying to persuade the public that it was all the fault of Fiona and Nick that she behaved so obnoxiously during her campaign - she bears no responsibility for it at all!
May's weakness are in full display after her gamble on the snap election backfired spectacularly. If she did that, she could have done her country (and herself) a favour after all.
But it was unclear whether it would be enough, with some Conservatives acknowledging that May has effectively become a lame-duck leader following a vote that was supposed to give her a resounding mandate for the next five years, but instead morphed into a stinging rejection that could end her premiership within days. I never hated them.
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