East Dunbartonshire is a county constituency of the House of Commons of the Parliament of the United Kingdom (Westminster). It elects one Member of Parliament (MP) by the first past the post system of election. The seat is possibly best known for formerly being the constituency of Jo Swinson, the former Leader of the Liberal Democrats who was defeated at the 2019 general election. The current MP for the constituency is Amy Callaghan of the Scottish National Party (SNP). The current constituency was first used at the 2005 general election. There was also an earlier East Dunbartonshire constituency, from 1950 to 1983. Constituency profile The constituency covers the northern edge of Greater Glasgow, and includes commuter towns on the North Clyde and Croy railway corridors. Since 1974 the constituency has been represented by all four of the main political parties in Scotland. Boundaries Current The existing constituency was created as a result of the Fifth Periodical Review of the Boundary Commission for Scotland, as one of two covering the East Dunbartonshire council area and one of five covering the East Dunbartonshire council area and the North Lanarkshire council area. The East Dunbartonshire constituency is entirely within the East Dunbartonshire council area, and the rest of the council area is covered by the Cumbernauld, Kilsyth and Kirkintilloch East constituency, which also covers part of the North Lanarkshire council area. The rest of the North Lanarkshire area is covered by the Airdrie and Shotts, Coatbridge, Chryston and Bellshill, and Motherwell and Wishaw constituencies. The East Dunbartonshire constituency replaced most of the Strathkelvin and Bearsden constituency and some of the Clydebank and Milngavie constituency and some of the Coatbridge and Chryston constituency. The Fifth Periodical Review did not affect the boundaries of Scottish Parliament constituencies, which retain the boundaries of Westminster constituencies prior to implementation of the results of the review. Historic The historic constituency was created under the House of Commons (Redistribution of Seats) Act 1949, and first used in the 1950 general election. As created in 1950, the constituency was one of two covering the county of Dunbarton. The other was West Dunbartonshire. The two new constituencies replaced the earlier constituencies of Dunbartonshire and Dumbarton Burghs. East Dunbartonshire covered the Cumbernauld, Kirkintilloch, and New Kilpatrick districts of the county and the burghs of Clydebank, Kirkintilloch, and Milngavie. For the 1951 general election the constituency boundaries were adjusted to take account of