Justine Greening has quit the May Cabinet after losing her education role and refusing to take the role in work and pension department.
Greening’s resignation is a big blow to May’s plan to reboot the cabinet and party to face the Brexit and election challenges.
Mrs May said she was “disappointed” but respected Ms Greening’s decision, Number 10 sources said
In a Tweet, Ms Greening said social mobility matters more to me than her ministerial career.
“Honour and privilege to serve in Govt since 2010,” she said. ” Social mobility matters to me and our country more than my ministerial career.
“I’ll continue to do everything I can to create a country that has equality of opportunity for young people and I’ll keep working hard as MP for Putney.”
Some pundits say that Greening was pushed because of her lack of enthusiasm over the policy of creating new grammar schools.
Her resignation is the biggest upset in Monday’s drawn-out Cabinet reshuffle, with Jeremy Hunt, Michael Gove, Boris Johnson, Amber Rudd, Philip Hammond and David Davis all keeping their posts.
Apart from the government, May also made significant changes in the Conservative Party structure with Brandon Lewis replacing Sir Patrick McLoughlin as party chairman with James Cleverly as his new deputy, the BBC reported.
James Brokenshire has resigned as Northern Ireland secretary for health reasons, while Justice Secretary David Lidington moves to the Cabinet Office.
Amber Rudd remains at the Home Office and Sajid Javid, who had charge of Community and Local Government, gets Housing in his remit too.