Accusations of sexual misconduct have surrounded Sir Michael in recent days after he admitted to feeling a female journalist’s knee in 2002.
The former Defence Secretary wrote to the Prime Minister explaining his decision.
Here is her response in full:
Thank you for your letter of this evening.
I appreciate the characteristically serious manner in which you have considered your position, and the particular example you wish to set to servicemen and women and others.
As Secretary of State for Defence since July 2014, you have championed our brave armed forces and made sure that the Government has been able to fulfil its most fundamental responsibility: the defence of the realm.
You should take particular pride in the way the United Kingdom has risen to the challenge of tackling the barbaric threat of Daesh.
Thanks to the bravery of our armed forces, Daesh is being defeated, and three million people have been freed from its murderous rule.
This follows a long and impressive Ministerial career - serving in four departments of state under four prime ministers - as well as your distinguished contribution on the Conservative front bench in Opposition, your membership of the Treasury Select Committee, and your role as deputy chairman of the Conservative Party.
You have combined these roles with diligent service to the public in two constituencies - first in Darlington, and then in Sevenoaks - and I know you will continue to represent your constituents in that manner.
On behalf of all those you have helped throughout your time in Government, I thank you for your service.
Yours sincerely Theresa
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