David Cameron became the Prime Minister of the United Kingdom in May 2010, leading a Conservative and Liberal Democrat coalition government. He is the current leader of the Conservative Party.Andrew Winning - WPA Pool/Getty Images
Ed Miliband is the leader of the Labour Party and the opposition leader in Parliament.Peter Macdiarmid/Getty Images
Nick Clegg is the current British deputy prime minister and the leader of the Liberal Democrats.NIKLAS HALLE'N/AFP/Getty Images
Nigel Farage is the leader of the Independence Party, a populist political party.Carl Court/Getty Images
Natalie Bennett is the leader of the Green Party of England and Wales.JUSTIN TALLIS/AFP/Getty Images
Nicola Sturgeon is the leader of the Scottish National Party, which advocates for Scotland's succession from the United Kingdom.Jeff J Mitchell/Getty Images
Leanne Wood is the leader of the Plaid Cymru Party, which is a political party in Wales that advocates for independence within the European Union.Matthew Horwood/Getty Images