May to signal intent to stay in Downing St despite election failure

The Prime Minister will insist her commitment to the job is "undimmed" as she marks the first anniversary of taking office weeks after the spectacular failure of her snap election gamble which has left her Government without a Commons majority.

In a speech on Tuesday apparently designed to try and calm speculation about her own future and the possibility of another general election this year, Mrs May will present herself as the leader Britain needs as it faces "great national change".

The weekend saw fresh speculation that Mrs May's tenure in Downing Street may not extend beyond the summer as it was reported former chief whip Alistair Mitchell had told MPs at a dinner that she had lost all authority.

The Prime Minister's official spokesman said last week Mrs May intended to serve a full term in the role and at the G20 summit at the weekend she set out her intention to work with other world leaders over the long term.

Mrs May has faced criticism over her apparent reluctance to acknowledge the election result but tomorrow she will say that the "reality" of her position compared to a year ago is "rather different" and acknowledge the outcome of last month's poll was "not what I wanted".

She will say: "At this critical time in our history, we can either be timid or we can be bold.

"I think this country needs a government that is prepared to take the bold action necessary to secure a better future for Britain and we are determined to be that government."

Mrs May will deliver the speech at the launch of a new report by former Tony Blair adviser Matthew Taylor on changes to the world of work which will make recommendations on how the Government should respond to the rise of the so-called 'gig economy'.

She will use it as an opportunity to try and reboot the fairness agenda she set out on the steps of Downing Street after becoming Prime Minister last July.

Mrs May will say: "I am convinced that the path that I set out in that first speech outside Number 10 and upon which we have set ourselves as a government remains the right one.

"It will lead to the stronger, fairer Britain that we need. It will deliver the change people want. It will ensure we make the most of this opportunity to ask ourselves what kind of country we want to be and to answer that question with confidence, optimism and hope."

Despite her deal for support from the Democratic Unionist Party, Mrs May's Government remains highly vulnerable to Commons defeats and the Prime Minister will challenge other parties to "contribute, not just criticise".

"We may not agree on everything, but through debate and discussion – the hallmarks of our Parliamentary democracy – ideas can be clarified and improved and a better way forward found," she will say.

The Taylor report is expected to recommend changes to employment law to give protection to those doing short-term and casual work.