Erith and Crayford

Sir David was elected as the Conservative MP for Erith and Crayford at the 1983 general election, when he defeated James Wellbeloved who had defected from the Labour Party to the newly formed Social Democrats in 1981. Sir David gained the seat with a majority of 920 votes over Wellbeloved. He remained the MP until the seat was redrawn in boundary changes at the 1997 general election.

In Parliament he joined the Education and Science Select committee in 1986. Following the 1992 general election he was appointed the Parliamentary Private Secretary (PPS) to the Minister of State at the Department for Education, Emily Blatch.

In 1993, he became the PPS to John Redwood, the Secretary of State for Wales, until 1995 when he was made PPS to the Home Office minister David Maclean, and then PPS to Gillian Shephard at the Department for Education in 1996, where he remained until he was defeated at the 1997 general election.

Bexleyheath and Crayford

He contested the newly drawn Bexleyheath and Crayford seat in 1997, but lost to Labour's Nigel Beard by 3,415 votes. He narrowly lost to Beard again at the 2001 general election but reduced his majority to 1,475. He was re-elected to Parliament for Bexleyheath and Crayford at the 2005 general election, ousting Beard by 4,551 votes. By winning back a seat which, albeit after boundary changes, he had lost in 1997, he became the only MP to have lost his seat in the Labour landslide of 1997, fought the same seat unsuccessfully in 2001 and then to have fought and won it back at the second attempt.

Following his re-election in 2005, he was made a member of the Education & Skills Select Committee and was appointed as an Opposition Whip by Michael Howard, and remained a whip under the new leadership of David Cameron. In January 2009, he was appointed Shadow Minister for Skills in the Conservative Innovation, Universities and Skills team.^[5]

At the 2010 general election he was returned with a majority of 10,344, and was appointed PPS to Michael Gove, Secretary of State for Education. In 2012, he was appointed Lord Commissioner of HM Treasury (Government Whip) and remained in the role until January 2018.

In March 2015, he was appointed to the Privy Council of the United Kingdom and therefore granted the title The Right Honourable.^[6]

From January 2016 to July 2016, he was the Acting Parliamentary Under-Secretary of State for Sport, Tourism and Heritage, to cover the maternity leave of Tracey Crouch.^[7]

On 18 May 2018, it was announced that David Evennett would be knighted.^[8]

In July 2019, the new Prime Minister Boris Johnson appointed Evennett as a Vice Chairman of the Conservative Party.^{[citation needed]}

On 6 June 2022, after a vote of no confidence in the leadership of Boris Johnson was called, Evennett announced that he would be supporting the Prime Minister.^[9]