Boris Johnson should be jailed over Brexit claims, says ex-David Davis aide

In series of tweets, James Chapman asks ministers hard questions about leaving EU and calls for new party to avoid ‘catastrophe’The former chief of staff to David Davis has said Brexit is a catastrophe, and suggested that Boris Johnson and other leading Brexit campaigners should be jailed for claiming there would be an extra £350m a week for the NHS after the UK left the European Union.James Chapman, a former special adviser who now works for a public relations firm, expressed