New Jersey Governor Chris Christie said he has fired a top aide "because she lied to me".
Christie said the termination of Bridget Kelly's employment was "effective immediately".
Kelly had been Christie's deputy chief of staff for legislative and intergovernmental affairs.
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HM Inspectorate of Prisons also flagged up ‘chronic and substantial’ staff shortages at HMP Woodhill in Milton Keynes.
The over-payment totalled around £35,000 and involved three residents and different homes.
Ruth Faulkner received an apology after alleging discrimination relating to her pregnancy.