Russell works as a freelance photographer, specializing in "political photography, event photography, charity commissions and landscapes". In 2006, he was in-house photographer for
Total Politics magazine and also works for the Liberal Democrats, the
London Wildlife Trust, other charities, and individuals. He publishes work at Zenfolio. Russell became chairman of the
Lewisham Liberal Democrats and was elected to serve as a Liberal Democrat councillor for
Forest Hill on
Lewisham Borough Council at the
2006 Lewisham London Borough Council election, going on to chair the council's Overview and Scrutiny committee. He subsequently lost his seat in
2010. In 2006, Russell joined the board of Wide Horizons and chaired it from 2012. It went into administration and ceased trading in 2018. On 17 August 2014, on the death of his older brother
Nicholas Russell, 6th Earl Russell, Russell succeeded as
Earl Russell and Viscount Amberley, both in the
Peerage of the United Kingdom. At the
2022 Lewisham London Borough Council election, he again stood for election in the Forest Hill ward, and was unsuccessful, finishing eighth. In June 2023, Russell entered the House of Lords after winning a whole house by-election to fill a vacancy among the
excepted hereditary peers. As part of the
2025 Political Peerages and ahead of the
House of Lords (Hereditary Peers) Act 2026 coming into effect, he was created a
life peer, as Baron Russell of Forest Hill, of Forest Hill in the London Borough of Lewisham on 30 March 2026. ==Arms==