Howden and Haltemprice Conservative MP David Davis has giving his backing for Theresa May to continue as Prime Minister.
On the BBC's Today programme, Mr Davis said it would be "the height of self-indulgence" for members of his party to challenge the Prime Minister for the leadership.
Mr Davis, who will play a key role as Brexit Secretary in negotiations with the European Union, said the party is still committed to leaving the European Single Market.
On the Conservative Manifesto, Mr Davis said some elements of it will be "pruned away".
It's thought Tory policies such as the so-called "dementia tax" and means-testing winter fuel payments proved unpopular with voters:
We are being given an instruction by the British people and we've got to carry it out."