The PM said the he had no plans to legislate, although he hinted ministers would not stand in the way of MPs attempting to introduce a backbench Bill.
Meanwhile, Home Secretary Theresa May echoed Culture Secretary Maria Miller earlier this week in suggesting a more limited reduction to 20 weeks.
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Tuesday night's weather for the west of the region
Tuesday night's weather for the east of the region
An elderly woman sold her bungalow to move into sheltered housing in Kent, only to be told 5 months later that support may be taken away