Peterborough is a borough constituency represented in the House of Commons of the Parliament of the United Kingdom. Its current form is the direct, unbroken successor of a smaller constituency that was created in the mid-16th century and used for the legislatures of England, Great Britain and the United Kingdom (UK). The seat today elects one Member of Parliament (MP) by the first-past-the-post system of election since 1885, before which its earlier form had two-member representation using the similar bloc vote system and both forms had a broadening but restricted franchise until 1918. The current MP is Paul Bristow of the Conservative Party, who was elected at the 2019 general election. Boundaries and boundary changes The City of Peterborough formed a parliamentary borough returning two members in 1541. The rest of the Soke of Peterborough was part of the Northamptonshire parliamentary county; the area south of the River Nene was in the historic county of Huntingdonshire and Thorney was considered part of Cambridgeshire. Until 1832 when the whole of the parish of Saint John the Baptist was encompassed, the boundary, as far as is known, excluded the villages of Longthorpe, Dogsthorpe and Newark with Eastfield. The Great Reform Act did not affect the borough, while the rural portion of the Soke was included in the Northern division of Northamptonshire. Under the Boundaries Act 1868, New Fletton and Woodstone were transferred from Huntingdonshire and, under the Redistribution of Seats Act 1885, the borough's representation was reduced from two to one MP. In 1918 the parliamentary borough was abolished and replaced with a new division of the parliamentary county of Northampton with the Soke of Peterborough, including the whole of the Soke (which had been created as a separate administrative county by the Local Government Act 1888) and neighbouring parts of the administrative county of Northamptonshire, absorbing the bulk of the abolished Northern division, incorporating Oundle and extending down to and beyond Thrapston and Corby. This became a county constituency under the revisions brought in for the 1950 general election by the Representation of the People Act 1948, with only minor changes to the boundaries of the constituency to reflect a rationalisation of the rural districts of Northamptonshire. The composition of the constituency from 1918 onwards is shown in the table below. In 1965 the administrative counties of the Soke of Peterborough and Huntingdonshire were combined to form Huntingdon and Peterborough. At