David Cameron is due to address Conservative backbenchers for the first time since winning a majority, as he continues to appoint his new cabinet, reports the BBC.
He retains Iain Duncan Smith as Work and Pensions Secretary, while Baroness Stowell remains leader of the Lords. The PM revealed he has already spoken to European leaders about renegotiating Britain's relationship with the E.U., ahead of his planned in/out referendum.
A senior backbencher said ministers should be free to back a U.K. exit. Graham Brady, who chairs the 1922 Committee, said Cameron should allow "freedom of expression" to avoid tension within the party. The Conservatives won a 12-seat majority in the House of Commons in Thursday's election, taking 331 of the 650 seats.
As MPs return to Westminster, Cameron will pledge to ensure the "economic recovery reaches all parts of our country".
Cameron will tell the 1922 Committee his first term was "about repair and recovery", saying it fell to his party to put the economy back on track after "the great Labour recession", and that the next term is about renewal.
"It will be our task to renew a sense of fairness in our society - where those who work hard and do the right thing are able to get on," he will say.
The prime minister will address the committee on plans to renew the UK's relationship with Europe and show "respect" for all parts of the Union. Cameron told Channel 4 News on Sunday he had already called some European leaders ahead of efforts to renegotiate Britain's terms of membership of the E.U.
"The first thing is to get the renegotiation going," he said. "And we'll be doing that very soon, getting on with that. I've already made some calls to European leaders. The renegotiation first, then the referendum before the end of 2017."