 In 2016, Lewis launched and provided funding for the Money and Mental Health Policy Institute, a think tank directed by former Liberal Democrat adviser Polly Mackenzie to study the link between mental health issues and debt.Lewis's other large scale campaigns, with ensuing television programmes, include reclaiming payment protection insurance (it is predicted that this may grow to the same scale as bank charge reclaiming).Lewis became a Governor of the London School of Economics in 2008.