He said: "That the stigma, that the branding together of the residents, all 10,000 needs to be removed and should have been removed long before this and I'm really sorry that that never happened, and I regret that never happened.
"I'm sorry that this release of pressure and understanding of so many of those women was not done before this, because they were branded as being the fallen women, as they were referred to in this state."
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The duchess is expected to speak at the event, which will involve games, music and traditional Pakistani cakes.
Mr Trump said Ms Pelosi is a “third-grade” politician. She said he is having a meltdown.
Dame Louise Ellman has represented Liverpool Riverside since 1997.