Liddell-Grainger has been accused of abusive and bullying behaviour towards local councillors and council staff within his constituency. In 2010, he was reprimanded by the Conservative Party Leader and Chief Whip over his behaviour towards the former Chief Executive of Somerset County Council, whilst in 2015 the majority of Conservative West Somerset councillors backed calls for him to be deselected for "divisive" and "unsupportive" behaviour. In March 2015, West Somerset Council Leader Tim Taylor compiled a dossier of complaints, which was sent to the Conservative Party chairman and chief whip. Taylor described Liddell-Grainger as a "disgrace to the Conservative Party".