Baroness Warsi resigned from the government because she wants to be able to live with herself and she could not in good conscience support the government's policy on Gaza.
Speaking to the Radio 4's Today programme she said: "My departure clearly says says that governments policy on Gaza is morally indefensible. My departure clearly says that it is a policy that I could no longer support and put my name to..
The Conservative peer added: "Long after politics has come and gone I want to be able to live with myself and by resigning and stepping down I can live with myself."
More top news
Missing RAF gunner Corrie McKeague's mother has said he had an account on a swingers' website.
"I will work with him where we can, but I just didn't want to go celebrate or legitimise or normalise his presidency," one US lawmaker said.
Former US President George H.W. Bush is in intensive care after suffering from pneumonia, as his wife is admitted as a precaution.