Yvette Cooper: Labour needs a strong leader

Labour leadership contender Yvette Cooper says she doesn't believe that Jeremy Corbyn is strong enough to win the next general election.

Yvette Cooper, Liz Kendall and Andy Burnham have all attacked Corbyn's plans, saying they are not credible and will make the party unelectable.

The first wave of ballots were sent out to voters on Friday, with the new Labour leader being announced at a conference on 12 September.