Peter Walker Political correspondent: Tory leadership contest: where do things stand? In: The Guardian. 9. Juni 2019, ISSN0261-3077 (theguardian.com [abgerufen am 30. September 2019]).
Peter Walker Political correspondent: Veteran Tory MP Ken Clarke: 'I'm minded to step down now'. In: The Guardian. 27. Juni 2019, ISSN0261-3077 (theguardian.com [abgerufen am 30. September 2019]).
Peter Walker Political correspondent: Tory leadership contest: where do things stand? In: The Guardian. 9. Juni 2019, ISSN0261-3077 (theguardian.com [abgerufen am 30. September 2019]).
Peter Walker Political correspondent: Veteran Tory MP Ken Clarke: 'I'm minded to step down now'. In: The Guardian. 27. Juni 2019, ISSN0261-3077 (theguardian.com [abgerufen am 30. September 2019]).