Labour leadership candidate Jeremy Corbyn said his campaign is about "converting the Labour party into a much more social movement" after his party showed it was "incapable" of offering voters a political alternative in the last election.
Speaking on BBC1's Andrew Marr show he criticised Labour's recent position and indicated it was time for change.
He said: "It's been too close to big business, it's too close to economic orthodoxy, it's been incapable of offering Labour voters and the majority of the electorate a real alternative and that was the fundamental problem in the last election."
Calls to halt the Labour leadership race have been branded "unhelpful" after reports emerge of alleged "hard-left infiltration" of party.
Corbyn urges his party to be 'true to its roots' and offer 'a credible alternative' as the race to become new Labour leader continues.
"I can't believe that he said it," said Blair's former deputy Lord Prescott, who begged Labour to debate policies not personalities.