![UK General Election 2015: mapping the electoral arena](https://blogs.sas.com/content/sascom/files/2015/04/green-640x336.png)
There are 650 seats in the United Kingdom's House of Commons, but the result of this year’s general election is widely expected to hinge on the decisions made in under 150 constituencies. Undecided voters are watching the political agendas closely to help them decide which party they want to run