KEY POINTS
  • A loyal Conservative who has served in a number of ministerial roles, Philip Hammond is an unlikely rebel.
  • He said his fears over a no deal had forced him to vote against the government for the first time in his 22-year political career last week.

Finance Minister Philip Hammond said on Sunday he would resign if Boris Johnson became Britain's new prime minister because he could not support a leader happy to take the country out of the European Union without a deal.

Hammond's decision underlines the strength of feeling in parliament against a no-deal Brexit, which some lawmakers and many businesses say would be catastrophic for the economy.