Critchley served as a ConservativeMember of Parliament, first for Rochester and Chatham from 1959 to 1964 and then for Aldershot from 1970 until his retirement in 1997. While he was out of Parliament between 1964 and 1970 he worked as a journalist, including as a TV critic for The Times, and he continued to be active as a journalist and author throughout the remainder of his career. Having lost Rochester and Chatham in 1964, he stood again for the seat in 1966 election, but was once again defeated by the Labour candidate Anne Kerr. Critchley was considered to be on the left wing of the Conservative Party and never attained ministerial rank. He became identified as a prominent Tory critic of Margaret Thatcher. In 1980 he sparked controversy by writing an anonymous article in The Observer signed "by a Tory", in which he criticised Thatcher's "A level economics" and called her "didactic, tart and obstinate". He was later forced to admit authorship. He also memorably referred to Thatcher as "the great she-elephant" and claimed responsibility for the currency of the phrase "one of us", which she used privately to refer to any colleague whom she saw as loyal and supportive of her policies. Critchley was, however, supportive of Thatcher's stance at the time of the Falklands War. Critchley was a long-standing friend of Michael Heseltine, having met him first at preparatory school. Both then went on to Shrewsbury and Pembroke College, Oxford, and Critchley was best man at Heseltine's wedding. Their friendship waned in the 1960s, but Critchley still supported Heseltine in the 1990 leadership election. From the early 1990s Critchley became severely restricted in mobility from complications arising from the polio from which he had suffered as a young man. Still, he successfully re-contested Aldershot at the election in 1992. He then became an infrequent attender at the House of Commons until his retirement in 1997. He was knighted in 1995.
Later life
After his retirement he was expelled from the mainstream Conservative party for backing the Pro-Euro Conservative Party in the 1999 European Parliament election. He died the next year in Hereford from prostate cancer aged 69. He was married twice, and had four children. In later life he settled in Shropshire at Ludlow, and was buried in the parish churchyard at Wistanstow near Craven Arms. Critchley became highly regarded as a witty and acerbic political writer and journalist, increasingly so towards the end of his life. His 1994 volume of memoirs, A Bag of Boiled Sweets, was described by Jeremy Paxman as "the most entertaining set of political memoirs to have been published in years". He also wrote two mystery novels set in Parliament, Hung Parliament and Floating Voter, which feature an MP turned sleuth apparently based on Critchley himself along with a mixture of real and invented MPs, the latter providing the victims and suspects.
