TORY leader Theresa May will this week desperately try to repair her public image with a “relaunch” to mark her first anniversary as prime minister.

Senior colleagues are starting to suggest in private that one year might be quite long enough.

In a speech tomorrow, May will say she has an “unshakeable sense of purpose” but is willing to learn from the snap General Election, at which she managed to obliterate her majority.

She will say: “Though the result of last month’s General Election was not what I wanted, those defining beliefs remain; my commitment to change in Britain is undimmed; my belief in the potential of the British people and what we can achieve together as a nation remains steadfast; and the determination I have to get to grips with the challenges posed by a changing world never more sure.

“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.”

Despite having no majority, and being dependent on Northern Ireland’s DUP for support, May says her government will still be capable of taking “the bold action necessary to secure a better future for Britain”.

“In everything we do, we will act with an unshakeable sense of purpose to build the better, fairer Britain which we all want to see,” she will add.

The Prime Minister is also expected to offer an invitation to the other parties in parliament to come forward with their “views and ideas about how we can tackle these challenges as a country”.

“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.

Scottish Government Brexit minister Michael Russell said he and the First Minister had “already put forward a range of proposals last December which the UK Government thought they could blithely ignore”.

He said if the Prime Minister really wanted to work with others then she should let Scotland have “a seat at the negotiations to leave the EU”.

“This is a position not only overwhelmingly backed in Scotland but across the UK – including support from business leaders,” he said.

May replaced David Cameron on July 13 last year, and the last 12 months have not gone swimmingly.

The next 12 months look, if anything, to be trickier still.

Yesterday former Tory chief whip Andrew Mitchell was reported to have said at a private dinner that the Prime Minister had “lost her authority” and was “weak”.

An MP present at the gathering told a Sunday newspaper: “Mr Mitchell effectively said she was dead in the water. He said she was weak, had lost her authority, couldn’t go on and we needed a new leader. Some of us were very surprised and disagreed with him.”

Mitchell, who is a close ally of Brexit minister and potential May replacement David Davis, said: “This is an overheated report of a private dinner conversation.”

Cabinet minister David Lidington blamed leadership gossip on “too much warm Prosecco”. During a television interview the Justice Secretary said: “I think the summer parties is the key to this. I have been in parliament 25 years and almost every July a combination of too much sun and too much warm Prosecco leads to gossipy stories in the media.

“The key thing is this: the public has had an election. I think they want the politicians to go away and deal with the real problems that the people of this country are facing.”

According to a tabloid newspaper, one senior Tory MP believes the Prime Minister should announce her resignation at the party’s October conference to help “take the heat out of things”.