Prior to becoming an MP, Trotter served as a Conservative councillor for Dene ward in Newcastle upon Tyne, which covered the northern areas of Heaton, parts of Benton and the well-known Freeman Hospital.
Before entering politics, Trotter held a position as a Conservative councillor for Dene ward in Newcastle upon Tyne, which encompassed the northern regions of Heaton, parts of Benton, and the prominent Freeman Hospital.