British Prime Minister Theresa May has survived a no confidence motion in a vote of Conservative MPs.
A total of 184 Tory MPs had publicly said they would continue to back her as leader.
The party has 317 seats in the British parliament - meaning Mrs May needed 159 votes to gain a majority.
While 200 MPs voted in favour of Mrs May's leadership, 117 voted against - a majority of 83.
Since Mrs May has won, she is immune from another formal challenge for a year.
She earlier told a meeting of her Conservative Party that she will not lead the party into the next general election.
UK PM Theresa May speaking outside 10 Downing Street in London following a no confidence vote
Speaking at Downing Street after the confidence vote result, she acknowledged that a "significant number of colleagues did cast a vote against me".
But she said she listened to what they said.
"Following on from this ballot, we now need to get on with the job of delivering Brexit for the British people and building a better future for this country."
She added: "For my part I've heard what the House of Commons said about the Northern Ireland backstop, and when I go to the European Council tomorrow I will be seeking legal and political assurance that will assuage the concerns that members of parliament have on that issue".
She said that her party's "renewed mission" was delivering Brexit, bringing the country back together and building a country "that truly works for everyone".
However speaking by phone on Wednesday evening, The Taoiseach Leo Varadkar and European Commission President Jean-Claude Juncker dashed any hope of changes to Britain's EU withdrawal agreement.
They both agreed that the Brexit withdrawal deal is "a balanced compromise and the best outcome available".
While they also agreed to work to provide reassurance to the UK, they reiterated that the deal "cannot be re-opened or contradicted".
'Centre of Europe'
Earlier, Mr Varadkar said Ireland's position is at the heart of Europe "no matter what happens anywhere else."
In the Dáil he said Ireland's economy will continue to grow regardless of how Brexit turns out.
He said this would be the case because "People know that Ireland is a good place to do business; because our economy is strong; because we have a good education system; a favourable tax regime for companies, pro-enterprise policies - and a political consensus on that across this house - and that we know that our position is at the heart of Europe no matter what happens anywhere else."
File photo of Taoiseach Leo Varadkar | Image: Tom Honan/PA Wire/PA Images
Leadership challenge
The vote on Mrs May's leadership was called amid growing discontent in Westminster since the Brexit deal was agreed - however, the situation hit a new crisis point after Mrs May's controversial decision to pull Tuesday's planned 'meaningful vote' on the proposals.
When 48 Conservative MPs submit letters of no confidence, a vote of confidence in the party leader is triggered.
Mrs May had been due to travel to Dublin to discuss Brexit with Mr Varadkar, but that trip was called off.
Speaking outside Downing Street earlier, Mrs May said: "I will contest the vote with everything I've got.
"Through good times and bad over the last two years, my passionate belief that a [Brexit] deal is attainable and a bright future lies ahead for our country has not wavered - and that is now within our grasp.
"I stand ready to finish the job."
EU leaders
On Tuesday, she embarked on a whistle-stop tour of European leaders in a bid to win concessions or clarifications to the Brexit deal.
She met with German Chancellor Angela Merkel and Dutch Prime Minister Mark Rutte, as well as Jean-Claude Juncker and Donald Tusk.
European leaders have consistently said they are happy to offer clarification on the aspects of the deal, but insisted it will not be renegotiated.
Long and frank discussion with PM @theresa_may ahead of #Brexit summit. Clear that EU27 wants to help. The question is how.
— Donald Tusk (@eucopresident) December 11, 2018
Additional reporting: Michael Staines and Jack Quann
