He worked for a housing charity and became a councillor in the London Borough of Islington. He came third at Epsom and Ewell in the 1979 general election before narrowly winning the seat of Islington South and Finsbury at the 1983 general election, defeating George Cunningham, who had ultimately defected to the Social Democrats from Labour. Cunningham stood again at the 1987 general election when Smith retained the seat. In 1984, he became Britain's first gay MP to choose to "come out". There had been several gay MPs before this whose homosexuality had been common knowledge in some circles, including their constituents in some cases, but they had not been completely open about it. During a rally in Rugby, Warwickshire, against a possible ban on gay employees by the town council, Smith began his speech: "Good afternoon, I'm Chris Smith, I'm the Labour MP for Islington South and Finsbury and I'm gay." This was unscripted, and the decision to include it in his speech was made at the last minute. He immediately received a standing ovation from most of the audience. He became an opposition whip in 1986, a shadow Treasury minister from 1987 to 1992, and shadowed the environment, heritage, pensions and health portfolios between 1992 and 1997.
In 1997, he was appointed to Tony Blair's Cabinet as the Secretary of State for Culture, Media and Sport. As a Minister known to have a close connection with the arts scene in Britain, his time at DCMS is generally regarded as a success, for many projects funded through the National Lottery came to fruition. There were controversies, such as his approval during his first week as minister of the appointment of Mary Allen to the Royal Opera House. In this case, a Select Committee report later found that he had exceeded his authority and had improperly failed to seek advice from his Permanent Secretary. In 2000, he managed to secure a tax rebate that enabled many museums to give free admission. He held this position throughout the Labour government's first term, but was sacked and returned to the back benches after the 2001 election, being replaced by Tessa Jowell. Tony Blair later hinted at his regret at losing Smith's services, particularly his strong relationship with the arts world..
Smith was appointed Chair of the London Cultural Consortium by Ken Livingstone, the then Mayor of London, and served from 2005 to 2008. He was awarded an Honorary Fellowship in 2010 from the University of Cumbria. In November 2006, he was appointed as Chairman of the Advertising Standards Authority. He was one of the founding directors of the Clore Leadership Programme, an initiative aimed at helping to train and develop new leaders of Britain's cultural sector. He is also currently Chairman of the Wordsworth Trust. Smith is a keen mountaineer, and was the first MP to climb all the 3,000 ft "Munros" in Scotland; in April 2004, he was elected President of the Ramblers' Association. He is a patron of London-based HIV charity The Food Chain, and also Patron of HIV support charity The National Long-Term Survivors Group. Smith was announced as the new Chairman of the Environment Agency on 8 May 2008, and took up the new role in mid-July. In an interview with The Independent in August that year he said Britain faced hard choices over which coasts to defend and which to leave to the sea, because it would not be possible to save all coastal homes from sea erosion. Lord Smith was re-appointed as Chair of the Environment Agency for a further three years by Environment Secretary Caroline Spelman in 2011. On re-appointment he received £100,813 pro rata for 2011–12, based on working three days a week. Lord Smith continued in this role until 13 July 2014. Smith became a vice-president of the Campaign for Homosexual Equality in February 2009. In December 2014, it was announced that Lord Smith would become the next Master of Pembroke College, Cambridge in 2015, succeeding Sir Richard Dearlove. He accepted an invitation to become the Chairman of Trustees of the Cambridge Union Society in 2015. He is currently listed as the Chairman of the Task Force on Shale Gas.
Personal life
In 2005, Smith entered a civil partnership with Dorian Jabri, his partner since 1987. The couple separated amicably in 2012.
HIV status
In 2003, Smith was contacted by a reporter from The Sunday Times asking for a comment on his health but declined, citing the Press Complaints Code. However two years later, in 2005, he contacted the paper's editor and revealed in a story, titled "Why This is the Time to Break my HIV Silence", he had been diagnosed as HIV-positive as long ago as 1987. He stated he had decided to go public following Nelson Mandela's announcement of his son's death from AIDS.