
Labour Party, led by Ed Miliband MP
Conservative Party, led by David Cameron MP
Ukip, led by Nigel Farage MEP
Green Party, led by Natalie Bennett
Liberal Democrats, led by Nick Clegg MP
SNP, led by Nicola Sturgeon MSP
Plaid Cymru, led by Leanne Wood AM
DUP, led by Peter Robinson MLA
Sinn Fein, led by Gerry Adams MLA
Other