Shortly before the 2017 general election, Healthier IN the EU and Vote Leave Watch organised an open letter calling on the Conservative Party to commit to spending an extra £350m per week on the NHS after Brexit. The letter was signed by some of the UK's leading medical professionals. The amount of £350m per week corresponded to the savings attributable to Brexit claimed by the Vote Leave campaign. Following the publication of the letter, foreign secretary Boris Johnson received negative press coverage for falsely claiming that the pledge was already in the Conservative Party election manifesto.
