Ed Miliband has vowed to "fight for a fairer, more just, more equal Britain" and has urged Labour supporters to join him.
He said that despite what critics threw at him he 'was going nowhere.'
The Labour leader was speaking at the University of London in an attempt to to relaunch his party to the UK electorate.
A Conservative minister has hit out at Ed Miliband after this morning's speech, saying the Labour leader still has no plan for the future of the country.
Matthew Hancock, who has a joint brief in the Energy and Business departments, told BBC News:
Ed Miliband has declared he is the man to win the General Election, but will the Labour leader make the final whistle?
With less than six months to go until the General Election, what will Ed Miliband do today to turn around his party's fortunes?