British PM and Conservative Party leader David Cameron and his wife Samantha visit a cake stall at the Wells May Day Fate in south-west England. (Agence France-Presse)
Principal opposition Labour Party leader Ed Miliband poses for a selfie with supporters following a campaign event in Kempston near Bedford on May 5, 2015. (Agence France-Presse)
Liberal Democrats leader Nick Clegg takes part in a tennis coaching session at the Tudor Grange Leisure Centre in Solihull, during a UK general election campaign visit. (Agence France-Presse)
Scottish First Minister and Scottish National Party (SNP) leader Nicola Sturgeon visits an amusement part in Motherwell while on the campaign trail on May 3, 2015. (Agence France-Presse)
