Julie Bailey, founder of campaign group Cure the NHS told Daybreak that NHS boss Sir David Nicholson is "ultimately responsible" for what happened at Stafford Hospital.
She said, as former Chief Executive of the strategic health authority, what happened at at Stafford Hospital happened "under his watch".
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A band of rain will cross England and Wales through the rest of today.
As Princess Charlotte celebrates her first birthday on Monday, the young royal has received letters and gifts from 64 countries worldwide.
A 36-year-old man has been shot dead during a police operation in Kent.