Nick Clegg was a Member of the European Parliament (MEP) from 1999 to 2004 and was first elected as a Liberal Democrat MP in the 2005 general election. He became the leader of the Liberal Democrats in December 2007. Following the 2010 General Election, he was made Deputy Prime Minister after a coalition deal with the Conservative Party. He resigned as party leader in 2015 after the May 2015 election because of the party's poor election results.