LONDON, Oct 15 (Reuters) Menzies Campbell, leader of the centrist Liberal Democrats who have consistently opposed the Iraq war, resigned today as head of Britain's third biggest party after his support slumped in opinion polls.
Here is the text of his resignation letter which was released by the party: ''When I was elected leader of the party in March 2006 I had three objectives. First, to restore stability and purpose in the party following my predecessor's resignation and the leadership campaign itself, second to make the internal operations of the party more professional, and third to prepare the party for a general election.
''With the help of others, I believe that I have fulfilled these objectives, although I am convinced that the internal structures of the party need radical revision if we are to compete effectively against Labour and the Conservatives.
''But it has become clear that following the prime minister's decision not to hold an election, questions about leadership are getting in the way of further progress by the party.
''Accordingly I now submit my resignation as leader with immediate effect.
''I do not intend to hold a press conference or to make any further comment.'' REUTERS CS BST0115