Original: Nicholas William Peter Clegg ( born 7 January 1967 ) , known as Nick Clegg , is the British Member of Parliament for Sheffield Hallam and , since 18 December , 2007 , leader of the Liberal Democrats .
Simplified: Nicholas William Peter Clegg ( born 7 January 1967 ) , known as Nick Clegg , is an English politician and , since 18 December 2007 , leader of the Liberal Democrats .