In 2016, Shimmins was elected to the House of Keys for the constituency of Middle along with incumbent Minister Howard Quayle.
[3] In his 2016 manifesto, Shimmins stated that his priorities were economic growth, reducing the public pension deficit, reducing the size and scope of government and maintaining quality of life for residents.
[5] Shimmins indicated that he does not support independence for the Isle of Man and does not believe that the Chief Minister should be popularly elected.
[6] Known as an astute speaker in Tynwald[citation needed], Mr Shimmins has served as Chairman of the Select Committee on Free Train and Tram Travel (Petition for Redress) 2016–2017, Member of the Select Committee of Tynwald on Financing of Infrastructure Schemes and Projects 2018–July 2018, Chairman of the Select Committee of Tynwald on Development of Unoccupied Urban Sites April 2018–November 2018, Member of the House of Keys Committee on the Education Bill 2020 2020–2021.
[7] Shimmins lives in Glen Vine and is married to Alison, a primary school teacher.