Ms Creagh joins Liz Kendall, Chuka Umunna, Andy Burnham and Yvette Cooper in the battle to replace Ed Miliband
Ms Creagh joins Liz Kendall, Chuka Umunna, Andy Burnham and Yvette Cooper in the battle to replace Ed Miliband in the wake of last week's devastating General Election defeat.
The Coventry-raised 47-year-old says she wants to win back the support of Middle England, Scotland and the party's former engineering heartland.
She told the Daily Mail: "We forgot the hard-learned lessons of our last three election victories; that to win elections a party needs to offer hope.
"Labour lost the General Election because people did not trust us with the economy.
"People trust Labour to look after their schools, hospitals and council services. But they simply do not trust us to run the economy and make them better off.
"That must change.
Nominations for leader close on June 15 and for deputy on June 17 and members and supporters who sign up by August 12 will be entitled to vote.
The result will be announced on September 12.
Mr Burnham, the Shadow Health Secretary, is the early favourite to take over.
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In a swipe at the left and the right of the party, he said Labour could not just speak to one group of voters.
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He confirmed in a Facebook video he was joining the contest then warned Labour must act “in the national interest”.